64620339 has 8 divisors (see below), whose sum is σ = 98469120. Its totient is φ = 36925896.

The previous prime is 64620329. The next prime is 64620343. The reversal of 64620339 is 93302646.

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

It is not a de Polignac number, because 64620339 - 2⁵ = 64620307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64620329) 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, 1538559 + ... + 1538600.

It is an arithmetic number, because the mean of its divisors is an integer number (12308640).

Almost surely, 2^64620339 is an apocalyptic number.

64620339 is a deficient number, since it is larger than the sum of its proper divisors (33848781).

64620339 is a wasteful number, since it uses less digits than its factorization.

64620339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077169.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 64620339 is about 8038.6776897696. The cubic root of 64620339 is about 401.2882196880.

The spelling of 64620339 in words is "sixty-four million, six hundred twenty thousand, three hundred thirty-nine".