85757412 has 48 divisors (see below), whose sum is σ = 226842560. Its totient is φ = 24997248.

The previous prime is 85757411. The next prime is 85757429. The reversal of 85757412 is 21475758.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (85757411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11503 + ... + 17430.

Almost surely, 2^85757412 is an apocalyptic number.

It is an amenable number.

85757412 is an abundant number, since it is smaller than the sum of its proper divisors (141085148).

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

85757412 is a wasteful number, since it uses less digits than its factorization.

85757412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28972 (or 28970 counting only the distinct ones).

The product of its digits is 78400, while the sum is 39.

The square root of 85757412 is about 9260.5297904602. The cubic root of 85757412 is about 440.9850725867.

The spelling of 85757412 in words is "eighty-five million, seven hundred fifty-seven thousand, four hundred twelve".