85708770 has 32 divisors (see below), whose sum is σ = 235087488. Its totient is φ = 19590528.

The previous prime is 85708757. The next prime is 85708783. The reversal of 85708770 is 7780758.

It is an interprime number because it is at equal distance from previous prime (85708757) and next prime (85708783).

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203859 + ... + 204278.

It is an arithmetic number, because the mean of its divisors is an integer number (7346484).

Almost surely, 2^85708770 is an apocalyptic number.

85708770 is an abundant number, since it is smaller than the sum of its proper divisors (149378718).

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

85708770 is a wasteful number, since it uses less digits than its factorization.

85708770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408154.

The product of its (nonzero) digits is 109760, while the sum is 42.

The square root of 85708770 is about 9257.9031103161. The cubic root of 85708770 is about 440.9016805616.

The spelling of 85708770 in words is "eighty-five million, seven hundred eight thousand, seven hundred seventy".