70619928 has 32 divisors (see below), whose sum is σ = 176947200. Its totient is φ = 23487008.

The previous prime is 70619881. The next prime is 70619933. The reversal of 70619928 is 82991607.

It is a self number, because there is not a number n which added to its sum of digits gives 70619928.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8425 + ... + 14567.

It is an arithmetic number, because the mean of its divisors is an integer number (5529600).

Almost surely, 2^70619928 is an apocalyptic number.

It is an amenable number.

70619928 is an abundant number, since it is smaller than the sum of its proper divisors (106327272).

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

70619928 is a wasteful number, since it uses less digits than its factorization.

70619928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631 (or 6627 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 70619928 is about 8403.5663857674. The cubic root of 70619928 is about 413.3415751623.

The spelling of 70619928 in words is "seventy million, six hundred nineteen thousand, nine hundred twenty-eight".