70716931 has 2 divisors, whose sum is σ = 70716932. Its totient is φ = 70716930.

The previous prime is 70716901. The next prime is 70716941. The reversal of 70716931 is 13961707.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13961707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70716931 - 2¹⁷ = 70585859 is a prime.

It is a super-2 number, since 2×70716931² = 10001768660117522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70716901) by changing a digit.

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 as a sum of consecutive naturals, namely, 35358465 + 35358466.

It is an arithmetic number, because the mean of its divisors is an integer number (35358466).

Almost surely, 2^70716931 is an apocalyptic number.

70716931 is a deficient number, since it is larger than the sum of its proper divisors (1).

70716931 is an equidigital number, since it uses as much as digits as its factorization.

70716931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 70716931 is about 8409.3359428673. The cubic root of 70716931 is about 413.5307428647.

The spelling of 70716931 in words is "seventy million, seven hundred sixteen thousand, nine hundred thirty-one".