70691265 has 16 divisors (see below), whose sum is σ = 125673600. Its totient is φ = 37701936.

The previous prime is 70691261. The next prime is 70691273. The reversal of 70691265 is 56219607.

70691265 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 70691265 - 2² = 70691261 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (70691261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261685 + ... + 261954.

It is an arithmetic number, because the mean of its divisors is an integer number (7854600).

Almost surely, 2^70691265 is an apocalyptic number.

It is an amenable number.

70691265 is a deficient number, since it is larger than the sum of its proper divisors (54982335).

70691265 is a wasteful number, since it uses less digits than its factorization.

70691265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523653 (or 523647 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 70691265 is about 8407.8097623579. The cubic root of 70691265 is about 413.4807078675.

The spelling of 70691265 in words is "seventy million, six hundred ninety-one thousand, two hundred sixty-five".