64596641 has 4 divisors (see below), whose sum is σ = 65414400. Its totient is φ = 63778884.

The previous prime is 64596619. The next prime is 64596647. The reversal of 64596641 is 14669546.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64596641 - 2⁶ = 64596577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64596647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408761 + ... + 408918.

It is an arithmetic number, because the mean of its divisors is an integer number (16353600).

Almost surely, 2^64596641 is an apocalyptic number.

It is an amenable number.

64596641 is a deficient number, since it is larger than the sum of its proper divisors (817759).

64596641 is an equidigital number, since it uses as much as digits as its factorization.

64596641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817758.

The product of its digits is 155520, while the sum is 41.

The square root of 64596641 is about 8037.2035559640. The cubic root of 64596641 is about 401.2391593297.

The spelling of 64596641 in words is "sixty-four million, five hundred ninety-six thousand, six hundred forty-one".