83776365 has 12 divisors (see below), whose sum is σ = 145212444. Its totient is φ = 44680704.

The previous prime is 83776351. The next prime is 83776409. The reversal of 83776365 is 56367738.

83776365 is a `hidden beast` number, since 8 + 3 + 7 + 7 + 636 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15515721 + 68260644 = 3939^2 + 8262^2 .

It is not a de Polignac number, because 83776365 - 2⁸ = 83776109 is a prime.

It is a super-2 number, since 2×83776365² = 14036958665226450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1861697 = 83776365 / (8 + 3 + 7 + 7 + 6 + 3 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 83776365.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 930804 + ... + 930893.

It is an arithmetic number, because the mean of its divisors is an integer number (12101037).

Almost surely, 2^83776365 is an apocalyptic number.

It is an amenable number.

83776365 is a deficient number, since it is larger than the sum of its proper divisors (61436079).

83776365 is a wasteful number, since it uses less digits than its factorization.

83776365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861708 (or 1861705 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 83776365 is about 9152.9429693405. The cubic root of 83776365 is about 437.5629123133.

The spelling of 83776365 in words is "eighty-three million, seven hundred seventy-six thousand, three hundred sixty-five".