64289679 has 4 divisors (see below), whose sum is σ = 85719576. Its totient is φ = 42859784.

The previous prime is 64289657. The next prime is 64289707. The reversal of 64289679 is 97698246.

It is a happy number.

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 64289679 - 2¹² = 64285583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64289879) 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, 10714944 + ... + 10714949.

It is an arithmetic number, because the mean of its divisors is an integer number (21429894).

Almost surely, 2^64289679 is an apocalyptic number.

64289679 is a deficient number, since it is larger than the sum of its proper divisors (21429897).

64289679 is a wasteful number, since it uses less digits than its factorization.

64289679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21429896.

The product of its digits is 1306368, while the sum is 51.

The square root of 64289679 is about 8018.0844969357. The cubic root of 64289679 is about 400.6025896750.

The spelling of 64289679 in words is "sixty-four million, two hundred eighty-nine thousand, six hundred seventy-nine".