70408724 has 12 divisors (see below), whose sum is σ = 123611124. Its totient is φ = 35091264.

The previous prime is 70408687. The next prime is 70408739. The reversal of 70408724 is 42780407.

It can be written as a sum of positive squares in 2 ways, for example, as 13557124 + 56851600 = 3682^2 + 7540^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26867 + ... + 29370.

It is an arithmetic number, because the mean of its divisors is an integer number (10300927).

Almost surely, 2^70408724 is an apocalyptic number.

It is an amenable number.

70408724 is a deficient number, since it is larger than the sum of its proper divisors (53202400).

70408724 is a wasteful number, since it uses less digits than its factorization.

70408724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56554 (or 56552 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 70408724 is about 8390.9906447332. The cubic root of 70408724 is about 412.9291015609.

The spelling of 70408724 in words is "seventy million, four hundred eight thousand, seven hundred twenty-four".