85757951 has 4 divisors (see below), whose sum is σ = 85776504. Its totient is φ = 85739400.

The previous prime is 85757929. The next prime is 85757957. The reversal of 85757951 is 15975758.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 85757951 - 2¹⁰ = 85756927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85757896 and 85757905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85757957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3836 + ... + 13646.

It is an arithmetic number, because the mean of its divisors is an integer number (21444126).

Almost surely, 2^85757951 is an apocalyptic number.

85757951 is a deficient number, since it is larger than the sum of its proper divisors (18553).

85757951 is an equidigital number, since it uses as much as digits as its factorization.

85757951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18552.

The product of its digits is 441000, while the sum is 47.

The square root of 85757951 is about 9260.5588924211. The cubic root of 85757951 is about 440.9859964736.

The spelling of 85757951 in words is "eighty-five million, seven hundred fifty-seven thousand, nine hundred fifty-one".