70644004 has 24 divisors (see below), whose sum is σ = 126766080. Its totient is φ = 34435296.

The previous prime is 70643999. The next prime is 70644019. The reversal of 70644004 is 40044607.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 70644004.

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, 28794 + ... + 31150.

It is an arithmetic number, because the mean of its divisors is an integer number (5281920).

Almost surely, 2^70644004 is an apocalyptic number.

It is an amenable number.

70644004 is a deficient number, since it is larger than the sum of its proper divisors (56122076).

70644004 is a wasteful number, since it uses less digits than its factorization.

70644004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 70644004 is about 8404.9987507435. The cubic root of 70644004 is about 413.3885424577.

The spelling of 70644004 in words is "seventy million, six hundred forty-four thousand, four".