70964731 has 2 divisors, whose sum is σ = 70964732. Its totient is φ = 70964730.

The previous prime is 70964723. The next prime is 70964737. The reversal of 70964731 is 13746907.

It is a strong prime.

It is an emirp because it is prime and its reverse (13746907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70964731 - 2³ = 70964723 is a prime.

It is a super-2 number, since 2×70964731² = 10071986091804722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70964737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35482365 + 35482366.

It is an arithmetic number, because the mean of its divisors is an integer number (35482366).

Almost surely, 2^70964731 is an apocalyptic number.

70964731 is a deficient number, since it is larger than the sum of its proper divisors (1).

70964731 is an equidigital number, since it uses as much as digits as its factorization.

70964731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 70964731 is about 8424.0566830951. The cubic root of 70964731 is about 414.0131990315.

The spelling of 70964731 in words is "seventy million, nine hundred sixty-four thousand, seven hundred thirty-one".