64632723 has 8 divisors (see below), whose sum is σ = 86940048. Its totient is φ = 42706944.

The previous prime is 64632721. The next prime is 64632727. The reversal of 64632723 is 32723646.

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

It is not a de Polignac number, because 64632723 - 2¹ = 64632721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64632721) 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, 94990 + ... + 95667.

It is an arithmetic number, because the mean of its divisors is an integer number (10867506).

Almost surely, 2^64632723 is an apocalyptic number.

64632723 is a deficient number, since it is larger than the sum of its proper divisors (22307325).

64632723 is a wasteful number, since it uses less digits than its factorization.

64632723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190773.

The product of its digits is 36288, while the sum is 33.

The square root of 64632723 is about 8039.4479288071. The cubic root of 64632723 is about 401.3138526696.

The spelling of 64632723 in words is "sixty-four million, six hundred thirty-two thousand, seven hundred twenty-three".