64675723 has 8 divisors (see below), whose sum is σ = 73964000. Its totient is φ = 55399680.

The previous prime is 64675697. The next prime is 64675729. The reversal of 64675723 is 32757646.

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

It is not a de Polignac number, because 64675723 - 2¹³ = 64667531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64675729) 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, 17563 + ... + 20923.

It is an arithmetic number, because the mean of its divisors is an integer number (9245500).

Almost surely, 2^64675723 is an apocalyptic number.

64675723 is a deficient number, since it is larger than the sum of its proper divisors (9288277).

64675723 is a wasteful number, since it uses less digits than its factorization.

64675723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117.

The product of its digits is 211680, while the sum is 40.

The square root of 64675723 is about 8042.1217971379. The cubic root of 64675723 is about 401.4028306639.

The spelling of 64675723 in words is "sixty-four million, six hundred seventy-five thousand, seven hundred twenty-three".