70690565 has 8 divisors (see below), whose sum is σ = 92540448. Its totient is φ = 51411280.

The previous prime is 70690553. The next prime is 70690567. The reversal of 70690565 is 56509607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70690565 - 2²⁰ = 69641989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70690567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642587 + ... + 642696.

It is an arithmetic number, because the mean of its divisors is an integer number (11567556).

Almost surely, 2^70690565 is an apocalyptic number.

It is an amenable number.

70690565 is a deficient number, since it is larger than the sum of its proper divisors (21849883).

70690565 is a wasteful number, since it uses less digits than its factorization.

70690565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285299.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 70690565 is about 8407.7681342910. The cubic root of 70690565 is about 413.4793430715.

The spelling of 70690565 in words is "seventy million, six hundred ninety thousand, five hundred sixty-five".