70718369 has 2 divisors, whose sum is σ = 70718370. Its totient is φ = 70718368.

The previous prime is 70718363. The next prime is 70718383. The reversal of 70718369 is 96381707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57577744 + 13140625 = 7588^2 + 3625^2 .

It is a cyclic number.

It is not a de Polignac number, because 70718369 - 2²⁰ = 69669793 is a prime.

It is a super-2 number, since 2×70718369² = 10002175428040322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (70718363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35359184 + 35359185.

It is an arithmetic number, because the mean of its divisors is an integer number (35359185).

Almost surely, 2^70718369 is an apocalyptic number.

It is an amenable number.

70718369 is a deficient number, since it is larger than the sum of its proper divisors (1).

70718369 is an equidigital number, since it uses as much as digits as its factorization.

70718369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 70718369 is about 8409.4214426440. The cubic root of 70718369 is about 413.5335458388.

The spelling of 70718369 in words is "seventy million, seven hundred eighteen thousand, three hundred sixty-nine".