64679433 has 32 divisors (see below), whose sum is σ = 107520000. Its totient is φ = 33673536.

The previous prime is 64679431. The next prime is 64679443. The reversal of 64679433 is 33497646.

It is not a de Polignac number, because 64679433 - 2¹ = 64679431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64679431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20068 + ... + 23066.

It is an arithmetic number, because the mean of its divisors is an integer number (3360000).

Almost surely, 2^64679433 is an apocalyptic number.

It is an amenable number.

64679433 is a deficient number, since it is larger than the sum of its proper divisors (42840567).

64679433 is a wasteful number, since it uses less digits than its factorization.

64679433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101.

The product of its digits is 326592, while the sum is 42.

The square root of 64679433 is about 8042.3524543507. The cubic root of 64679433 is about 401.4105057541.

The spelling of 64679433 in words is "sixty-four million, six hundred seventy-nine thousand, four hundred thirty-three".