85658370 has 48 divisors (see below), whose sum is σ = 239148288. Its totient is φ = 19578720.

The previous prime is 85658351. The next prime is 85658381. The reversal of 85658370 is 7385658.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27666 + ... + 30605.

It is an arithmetic number, because the mean of its divisors is an integer number (4982256).

Almost surely, 2^85658370 is an apocalyptic number.

85658370 is an abundant number, since it is smaller than the sum of its proper divisors (153489918).

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

85658370 is a wasteful number, since it uses less digits than its factorization.

85658370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58295 (or 58288 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 85658370 is about 9255.1807113638. The cubic root of 85658370 is about 440.8152413255.

The spelling of 85658370 in words is "eighty-five million, six hundred fifty-eight thousand, three hundred seventy".