70447928 has 16 divisors (see below), whose sum is σ = 132246000. Its totient is φ = 35182336.

The previous prime is 70447901. The next prime is 70447933. The reversal of 70447928 is 82974407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2693 + ... + 12171.

It is an arithmetic number, because the mean of its divisors is an integer number (8265375).

Almost surely, 2^70447928 is an apocalyptic number.

It is an amenable number.

70447928 is a deficient number, since it is larger than the sum of its proper divisors (61798072).

70447928 is a wasteful number, since it uses less digits than its factorization.

70447928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10414 (or 10410 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 70447928 is about 8393.3263966082. The cubic root of 70447928 is about 413.0057278078.

The spelling of 70447928 in words is "seventy million, four hundred forty-seven thousand, nine hundred twenty-eight".