64120723 has 8 divisors (see below), whose sum is σ = 64638000. Its totient is φ = 63606048.

The previous prime is 64120717. The next prime is 64120733. The reversal of 64120723 is 32702146.

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 64120723 - 2⁵ = 64120691 is a prime.

It is a super-2 number, since 2×64120723² = 8222934236085458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64120733) 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, 93540 + ... + 94222.

It is an arithmetic number, because the mean of its divisors is an integer number (8079750).

Almost surely, 2^64120723 is an apocalyptic number.

64120723 is a deficient number, since it is larger than the sum of its proper divisors (517277).

64120723 is a wasteful number, since it uses less digits than its factorization.

64120723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 64120723 is about 8007.5416327360. The cubic root of 64120723 is about 400.2513482770.

Adding to 64120723 its reverse (32702146), we get a palindrome (96822869).

The spelling of 64120723 in words is "sixty-four million, one hundred twenty thousand, seven hundred twenty-three".