64705953 has 16 divisors (see below), whose sum is σ = 93836736. Its totient is φ = 39422400.

The previous prime is 64705943. The next prime is 64705957. The reversal of 64705953 is 35950746.

It is not a de Polignac number, because 64705953 - 2¹⁸ = 64443809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (64705957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4275 + ... + 12152.

It is an arithmetic number, because the mean of its divisors is an integer number (5864796).

Almost surely, 2^64705953 is an apocalyptic number.

It is an amenable number.

64705953 is a deficient number, since it is larger than the sum of its proper divisors (29130783).

64705953 is a wasteful number, since it uses less digits than its factorization.

64705953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16544.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 64705953 is about 8044.0010566881. The cubic root of 64705953 is about 401.4653606567.

The spelling of 64705953 in words is "sixty-four million, seven hundred five thousand, nine hundred fifty-three".