75686856 has 64 divisors (see below), whose sum is σ = 228977280. Its totient is φ = 20352000.

The previous prime is 75686833. The next prime is 75686857. The reversal of 75686856 is 65868657.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 75686799 and 75686808.

It is not an unprimeable number, because it can be changed into a prime (75686857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10395 + ... + 16106.

It is an arithmetic number, because the mean of its divisors is an integer number (3577770).

Almost surely, 2^75686856 is an apocalyptic number.

It is an amenable number.

75686856 is an abundant number, since it is smaller than the sum of its proper divisors (153290424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75686856 is a wasteful number, since it uses less digits than its factorization.

75686856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26534 (or 26530 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The square root of 75686856 is about 8699.8193084684. The cubic root of 75686856 is about 422.9997932140. Note that the first 3 decimals are identical.

The spelling of 75686856 in words is "seventy-five million, six hundred eighty-six thousand, eight hundred fifty-six".