70309916 has 24 divisors (see below), whose sum is σ = 129461136. Its totient is φ = 33367680.

The previous prime is 70309913. The next prime is 70309961. The reversal of 70309916 is 61990307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70309913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275 + ... + 11861.

It is an arithmetic number, because the mean of its divisors is an integer number (5394214).

Almost surely, 2^70309916 is an apocalyptic number.

It is an amenable number.

70309916 is a deficient number, since it is larger than the sum of its proper divisors (59151220).

70309916 is a wasteful number, since it uses less digits than its factorization.

70309916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11669 (or 11667 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 70309916 is about 8385.1008342178. The cubic root of 70309916 is about 412.7358499432.

The spelling of 70309916 in words is "seventy million, three hundred nine thousand, nine hundred sixteen".