70638668 has 12 divisors (see below), whose sum is σ = 124333440. Its totient is φ = 35114832.

The previous prime is 70638653. The next prime is 70638683. The reversal of 70638668 is 86683607.

It is an interprime number because it is at equal distance from previous prime (70638653) and next prime (70638683).

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, 50348 + ... + 51731.

It is an arithmetic number, because the mean of its divisors is an integer number (10361120).

Almost surely, 2^70638668 is an apocalyptic number.

It is an amenable number.

70638668 is a deficient number, since it is larger than the sum of its proper divisors (53694772).

70638668 is a wasteful number, since it uses less digits than its factorization.

70638668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102256 (or 102254 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 70638668 is about 8404.6813146008. The cubic root of 70638668 is about 413.3781339461.

The spelling of 70638668 in words is "seventy million, six hundred thirty-eight thousand, six hundred sixty-eight".