83745511 has 8 divisors (see below), whose sum is σ = 85270640. Its totient is φ = 82228608.

The previous prime is 83745503. The next prime is 83745517. The reversal of 83745511 is 11554738.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83745511 - 2³ = 83745503 is a prime.

It is a super-2 number, since 2×83745511² = 14026621225302242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83745517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20725 + ... + 24433.

It is an arithmetic number, because the mean of its divisors is an integer number (10658830).

Almost surely, 2^83745511 is an apocalyptic number.

83745511 is a deficient number, since it is larger than the sum of its proper divisors (1525129).

83745511 is a wasteful number, since it uses less digits than its factorization.

83745511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113.

The product of its digits is 16800, while the sum is 34.

The square root of 83745511 is about 9151.2573453051. The cubic root of 83745511 is about 437.5091890315.

The spelling of 83745511 in words is "eighty-three million, seven hundred forty-five thousand, five hundred eleven".