70990916 has 24 divisors (see below), whose sum is σ = 131376000. Its totient is φ = 33472224.

The previous prime is 70990879. The next prime is 70990919. The reversal of 70990916 is 61909907.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70990919) 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, 15365 + ... + 19443.

It is an arithmetic number, because the mean of its divisors is an integer number (5474000).

Almost surely, 2^70990916 is an apocalyptic number.

70990916 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

70990916 is a deficient number, since it is larger than the sum of its proper divisors (60385084).

70990916 is a wasteful number, since it uses less digits than its factorization.

70990916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331 (or 4329 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 70990916 is about 8425.6107197045. The cubic root of 70990916 is about 414.0641144762.

The spelling of 70990916 in words is "seventy million, nine hundred ninety thousand, nine hundred sixteen".