64642627 has 8 divisors (see below), whose sum is σ = 77089536. Its totient is φ = 52998792.

The previous prime is 64642603. The next prime is 64642637. The reversal of 64642627 is 72624646.

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

It is not a de Polignac number, because 64642627 - 2⁷ = 64642499 is a prime.

It is a super-2 number, since 2×64642627² = 8357338450922258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64642637) 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, 200593 + ... + 200914.

It is an arithmetic number, because the mean of its divisors is an integer number (9636192).

Almost surely, 2^64642627 is an apocalyptic number.

64642627 is a deficient number, since it is larger than the sum of its proper divisors (12446909).

64642627 is a wasteful number, since it uses less digits than its factorization.

64642627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401537.

The product of its digits is 96768, while the sum is 37.

The square root of 64642627 is about 8040.0638679055. The cubic root of 64642627 is about 401.3343500751.

The spelling of 64642627 in words is "sixty-four million, six hundred forty-two thousand, six hundred twenty-seven".