64344634 has 4 divisors (see below), whose sum is σ = 96516954. Its totient is φ = 32172316.

The previous prime is 64344617. The next prime is 64344667. The reversal of 64344634 is 43644346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43644346 = 2 ⋅21822173.

It can be written as a sum of positive squares in only one way, i.e., 58599025 + 5745609 = 7655^2 + 2397^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64344634.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16086157 + ... + 16086160.

Almost surely, 2^64344634 is an apocalyptic number.

64344634 is a deficient number, since it is larger than the sum of its proper divisors (32172320).

64344634 is a wasteful number, since it uses less digits than its factorization.

64344634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32172319.

The product of its digits is 82944, while the sum is 34.

The square root of 64344634 is about 8021.5107055965. The cubic root of 64344634 is about 400.7167025766.

The spelling of 64344634 in words is "sixty-four million, three hundred forty-four thousand, six hundred thirty-four".