64970707 has 4 divisors (see below), whose sum is σ = 64997416. Its totient is φ = 64944000.

The previous prime is 64970681. The next prime is 64970713. The reversal of 64970707 is 70707946.

It is a happy number.

64970707 is nontrivially palindromic in base 16.

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

It is a cyclic number.

It is not a de Polignac number, because 64970707 - 2⁷ = 64970579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64970707.

It is not an unprimeable number, because it can be changed into a prime (64970767) 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, 9294 + ... + 14707.

It is an arithmetic number, because the mean of its divisors is an integer number (16249354).

Almost surely, 2^64970707 is an apocalyptic number.

64970707 is a deficient number, since it is larger than the sum of its proper divisors (26709).

64970707 is a wasteful number, since it uses less digits than its factorization.

64970707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26708.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 64970707 is about 8060.4408688359. The cubic root of 64970707 is about 402.0121672348.

The spelling of 64970707 in words is "sixty-four million, nine hundred seventy thousand, seven hundred seven".