71264790 has 48 divisors (see below), whose sum is σ = 187843968. Its totient is φ = 18741888.

The previous prime is 71264771. The next prime is 71264819. The reversal of 71264790 is 9746217.

It is a happy number.

71264790 is a `hidden beast` number, since 7 + 1 + 2 + 647 + 9 + 0 = 666.

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, 1147 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (3913416).

Almost surely, 2^71264790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71264790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93921984).

71264790 is an abundant number, since it is smaller than the sum of its proper divisors (116579178).

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

71264790 is a wasteful number, since it uses less digits than its factorization.

71264790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10933 (or 10930 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 71264790 is about 8441.8475465978. The cubic root of 71264790 is about 414.5959002501.

The spelling of 71264790 in words is "seventy-one million, two hundred sixty-four thousand, seven hundred ninety".