64723465 has 8 divisors (see below), whose sum is σ = 79320960. Its totient is φ = 50676912.

The previous prime is 64723459. The next prime is 64723469. The reversal of 64723465 is 56432746.

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 64723465 - 2³ = 64723457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64723469) 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, 137475 + ... + 137944.

It is an arithmetic number, because the mean of its divisors is an integer number (9915120).

Almost surely, 2^64723465 is an apocalyptic number.

It is an amenable number.

64723465 is a deficient number, since it is larger than the sum of its proper divisors (14597495).

64723465 is a wasteful number, since it uses less digits than its factorization.

64723465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275471.

The product of its digits is 120960, while the sum is 37.

The square root of 64723465 is about 8045.0894960839. The cubic root of 64723465 is about 401.5015748788.

The spelling of 64723465 in words is "sixty-four million, seven hundred twenty-three thousand, four hundred sixty-five".