70336729 has 2 divisors, whose sum is σ = 70336730. Its totient is φ = 70336728.

The previous prime is 70336699. The next prime is 70336751. The reversal of 70336729 is 92763307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43917129 + 26419600 = 6627^2 + 5140^2 .

It is a cyclic number.

It is not a de Polignac number, because 70336729 - 2⁵ = 70336697 is a prime.

It is not a weakly prime, because it can be changed into another prime (70336229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35168364 + 35168365.

It is an arithmetic number, because the mean of its divisors is an integer number (35168365).

Almost surely, 2^70336729 is an apocalyptic number.

It is an amenable number.

70336729 is a deficient number, since it is larger than the sum of its proper divisors (1).

70336729 is an equidigital number, since it uses as much as digits as its factorization.

70336729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 70336729 is about 8386.6995296123. The cubic root of 70336729 is about 412.7883094942.

The spelling of 70336729 in words is "seventy million, three hundred thirty-six thousand, seven hundred twenty-nine".