85747530 has 32 divisors (see below), whose sum is σ = 224503488. Its totient is φ = 20787200.

The previous prime is 85747511. The next prime is 85747567. The reversal of 85747530 is 3574758.

It is a super-2 number, since 2×85747530² = 14705277802201800, which contains 22 as substring.

It is an unprimeable number.

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, 129591 + ... + 130250.

It is an arithmetic number, because the mean of its divisors is an integer number (7015734).

Almost surely, 2^85747530 is an apocalyptic number.

85747530 is an abundant number, since it is smaller than the sum of its proper divisors (138755958).

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

85747530 is a wasteful number, since it uses less digits than its factorization.

85747530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259862.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 85747530 is about 9259.9962203016. The cubic root of 85747530 is about 440.9681334022.

The spelling of 85747530 in words is "eighty-five million, seven hundred forty-seven thousand, five hundred thirty".