70744728 has 32 divisors (see below), whose sum is σ = 182568960. Its totient is φ = 22820640.

The previous prime is 70744693. The next prime is 70744747. The reversal of 70744728 is 82744707.

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, 46800 + ... + 48287.

It is an arithmetic number, because the mean of its divisors is an integer number (5705280).

Almost surely, 2^70744728 is an apocalyptic number.

It is an amenable number.

70744728 is an abundant number, since it is smaller than the sum of its proper divisors (111824232).

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

70744728 is a wasteful number, since it uses less digits than its factorization.

70744728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95127 (or 95123 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 70744728 is about 8410.9885269212. The cubic root of 70744728 is about 413.5849185202.

The spelling of 70744728 in words is "seventy million, seven hundred forty-four thousand, seven hundred twenty-eight".