85790940 has 24 divisors (see below), whose sum is σ = 240214800. Its totient is φ = 22877568.

The previous prime is 85790917. The next prime is 85790951. The reversal of 85790940 is 4909758.

It is a junction number, because it is equal to n+sod(n) for n = 85790892 and 85790901.

It is a congruent number.

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, 714865 + ... + 714984.

It is an arithmetic number, because the mean of its divisors is an integer number (10008950).

Almost surely, 2^85790940 is an apocalyptic number.

It is an amenable number.

85790940 is an abundant number, since it is smaller than the sum of its proper divisors (154423860).

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

85790940 is a wasteful number, since it uses less digits than its factorization.

85790940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429861 (or 1429859 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 85790940 is about 9262.3398771585. The cubic root of 85790940 is about 441.0425347572.

The spelling of 85790940 in words is "eighty-five million, seven hundred ninety thousand, nine hundred forty".