64423707 has 8 divisors (see below), whose sum is σ = 85964880. Its totient is φ = 42915840.

The previous prime is 64423657. The next prime is 64423721. The reversal of 64423707 is 70732446.

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

It is not a de Polignac number, because 64423707 - 2¹⁴ = 64407323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64423787) 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, 3394 + ... + 11847.

It is an arithmetic number, because the mean of its divisors is an integer number (10745610).

Almost surely, 2^64423707 is an apocalyptic number.

64423707 is a deficient number, since it is larger than the sum of its proper divisors (21541173).

64423707 is a wasteful number, since it uses less digits than its factorization.

64423707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16653.

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 64423707 is about 8026.4380020031. The cubic root of 64423707 is about 400.8807820506.

The spelling of 64423707 in words is "sixty-four million, four hundred twenty-three thousand, seven hundred seven".