85658830 has 16 divisors (see below), whose sum is σ = 156488400. Its totient is φ = 33751872.

The previous prime is 85658819. The next prime is 85658879. The reversal of 85658830 is 3885658.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 63255 + ... + 64594.

It is an arithmetic number, because the mean of its divisors is an integer number (9780525).

Almost surely, 2^85658830 is an apocalyptic number.

85658830 is a deficient number, since it is larger than the sum of its proper divisors (70829570).

85658830 is a wasteful number, since it uses less digits than its factorization.

85658830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127923.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 85658830 is about 9255.2055622768. The cubic root of 85658830 is about 440.8160304084.

The spelling of 85658830 in words is "eighty-five million, six hundred fifty-eight thousand, eight hundred thirty".