85670490 has 16 divisors (see below), whose sum is σ = 205609248. Its totient is φ = 22845456.

The previous prime is 85670489. The next prime is 85670509. The reversal of 85670490 is 9407658.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1427812 + ... + 1427871.

It is an arithmetic number, because the mean of its divisors is an integer number (12850578).

Almost surely, 2^85670490 is an apocalyptic number.

85670490 is an abundant number, since it is smaller than the sum of its proper divisors (119938758).

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

85670490 is a wasteful number, since it uses less digits than its factorization.

85670490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855693.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 85670490 is about 9255.8354566187. The cubic root of 85670490 is about 440.8360309995.

The spelling of 85670490 in words is "eighty-five million, six hundred seventy thousand, four hundred ninety".