83816782 has 16 divisors (see below), whose sum is σ = 143816832. Its totient is φ = 35888760.

The previous prime is 83816773. The next prime is 83816791. The reversal of 83816782 is 28761838.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83816773) and next prime (83816791).

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 7 ways as a sum of consecutive naturals, for example, 19357 + ... + 23287.

It is an arithmetic number, because the mean of its divisors is an integer number (8988552).

Almost surely, 2^83816782 is an apocalyptic number.

83816782 is a deficient number, since it is larger than the sum of its proper divisors (60000050).

83816782 is a wasteful number, since it uses less digits than its factorization.

83816782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463.

The product of its digits is 129024, while the sum is 43.

The square root of 83816782 is about 9155.1505722189. The cubic root of 83816782 is about 437.6332668301.

The spelling of 83816782 in words is "eighty-three million, eight hundred sixteen thousand, seven hundred eighty-two".