64463957 has 8 divisors (see below), whose sum is σ = 65265312. Its totient is φ = 63666000.

The previous prime is 64463951. The next prime is 64463981. The reversal of 64463957 is 75936446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64463957 - 2⁸ = 64463701 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 (64463951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79082 + ... + 79892.

It is an arithmetic number, because the mean of its divisors is an integer number (8158164).

Almost surely, 2^64463957 is an apocalyptic number.

It is an amenable number.

64463957 is a deficient number, since it is larger than the sum of its proper divisors (801355).

64463957 is a wasteful number, since it uses less digits than its factorization.

64463957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699.

The product of its digits is 544320, while the sum is 44.

The square root of 64463957 is about 8028.9449493691. The cubic root of 64463957 is about 400.9642507667.

The spelling of 64463957 in words is "sixty-four million, four hundred sixty-three thousand, nine hundred fifty-seven".