85757428 has 12 divisors (see below), whose sum is σ = 150237472. Its totient is φ = 42832440.

The previous prime is 85757411. The next prime is 85757429. The reversal of 85757428 is 82475758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85757429) 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, 7218 + ... + 14953.

Almost surely, 2^85757428 is an apocalyptic number.

It is an amenable number.

85757428 is a deficient number, since it is larger than the sum of its proper divisors (64480044).

85757428 is a wasteful number, since it uses less digits than its factorization.

85757428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23142 (or 23140 counting only the distinct ones).

The product of its digits is 627200, while the sum is 46.

The square root of 85757428 is about 9260.5306543416. The cubic root of 85757428 is about 440.9851000120.

It can be divided in two parts, 857 and 57428, that added together give a palindrome (58285).

The spelling of 85757428 in words is "eighty-five million, seven hundred fifty-seven thousand, four hundred twenty-eight".