70764613 has 4 divisors (see below), whose sum is σ = 70822080. Its totient is φ = 70707148.

The previous prime is 70764587. The next prime is 70764623. The reversal of 70764613 is 31646707.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70764613 - 2⁹ = 70764101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70764623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26845 + ... + 29362.

It is an arithmetic number, because the mean of its divisors is an integer number (17705520).

Almost surely, 2^70764613 is an apocalyptic number.

It is an amenable number.

70764613 is a deficient number, since it is larger than the sum of its proper divisors (57467).

70764613 is a wasteful number, since it uses less digits than its factorization.

70764613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57466.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 70764613 is about 8412.1705284665. The cubic root of 70764613 is about 413.6236651798.

The spelling of 70764613 in words is "seventy million, seven hundred sixty-four thousand, six hundred thirteen".