70656965 has 4 divisors (see below), whose sum is σ = 84788364. Its totient is φ = 56525568.

The previous prime is 70656959. The next prime is 70656973. The reversal of 70656965 is 56965607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33373729 + 37283236 = 5777^2 + 6106^2 .

It is a cyclic number.

It is not a de Polignac number, because 70656965 - 2²⁰ = 69608389 is a prime.

It is a super-2 number, since 2×70656965² = 9984813406022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7065692 + ... + 7065701.

It is an arithmetic number, because the mean of its divisors is an integer number (21197091).

Almost surely, 2^70656965 is an apocalyptic number.

It is an amenable number.

70656965 is a deficient number, since it is larger than the sum of its proper divisors (14131399).

70656965 is a wasteful number, since it uses less digits than its factorization.

70656965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14131398.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 70656965 is about 8405.7697446456. The cubic root of 70656965 is about 413.4138222690.

The spelling of 70656965 in words is "seventy million, six hundred fifty-six thousand, nine hundred sixty-five".