70329971 has 2 divisors, whose sum is σ = 70329972. Its totient is φ = 70329970.

The previous prime is 70329943. The next prime is 70329977. The reversal of 70329971 is 17992307.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70329971 - 2¹⁸ = 70067827 is a prime.

It is not a weakly prime, because it can be changed into another prime (70329977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35164985 + 35164986.

It is an arithmetic number, because the mean of its divisors is an integer number (35164986).

Almost surely, 2^70329971 is an apocalyptic number.

70329971 is a deficient number, since it is larger than the sum of its proper divisors (1).

70329971 is an equidigital number, since it uses as much as digits as its factorization.

70329971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 70329971 is about 8386.2966200821. The cubic root of 70329971 is about 412.7750887451.

The spelling of 70329971 in words is "seventy million, three hundred twenty-nine thousand, nine hundred seventy-one".