80693775 has 72 divisors (see below), whose sum is σ = 155990016. Its totient is φ = 39758400.

The previous prime is 80693731. The next prime is 80693797. The reversal of 80693775 is 57739608.

It is a happy number.

It is not a de Polignac number, because 80693775 - 2⁸ = 80693519 is a prime.

It is a super-2 number, since 2×80693775² = 13022970647501250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80693775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 160174 + ... + 160676.

It is an arithmetic number, because the mean of its divisors is an integer number (2166528).

Almost surely, 2^80693775 is an apocalyptic number.

80693775 is a deficient number, since it is larger than the sum of its proper divisors (75296241).

80693775 is a wasteful number, since it uses less digits than its factorization.

80693775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 80693775 is about 8982.9713903585. The cubic root of 80693775 is about 432.1289320663.

The spelling of 80693775 in words is "eighty million, six hundred ninety-three thousand, seven hundred seventy-five".