70956169 has 2 divisors, whose sum is σ = 70956170. Its totient is φ = 70956168.

The previous prime is 70956157. The next prime is 70956209. The reversal of 70956169 is 96165907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41925625 + 29030544 = 6475^2 + 5388^2 .

It is a cyclic number.

It is not a de Polignac number, because 70956169 - 2²⁵ = 37401737 is a prime.

It is a super-2 number, since 2×70956169² = 10069555838313122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70956569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35478084 + 35478085.

It is an arithmetic number, because the mean of its divisors is an integer number (35478085).

Almost surely, 2^70956169 is an apocalyptic number.

It is an amenable number.

70956169 is a deficient number, since it is larger than the sum of its proper divisors (1).

70956169 is an equidigital number, since it uses as much as digits as its factorization.

70956169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 70956169 is about 8423.5484803021. The cubic root of 70956169 is about 413.9965479264.

The spelling of 70956169 in words is "seventy million, nine hundred fifty-six thousand, one hundred sixty-nine".