64888646 has 8 divisors (see below), whose sum is σ = 97368744. Its totient is φ = 32432400.

The previous prime is 64888633. The next prime is 64888651. The reversal of 64888646 is 64688846.

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

It is a junction number, because it is equal to n+sod(n) for n = 64888594 and 64888603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4541 + ... + 12263.

It is an arithmetic number, because the mean of its divisors is an integer number (12171093).

Almost surely, 2^64888646 is an apocalyptic number.

64888646 is a deficient number, since it is larger than the sum of its proper divisors (32480098).

64888646 is a wasteful number, since it uses less digits than its factorization.

64888646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11926.

The product of its digits is 1769472, while the sum is 50.

The square root of 64888646 is about 8055.3489061617. The cubic root of 64888646 is about 401.8428426226.

The spelling of 64888646 in words is "sixty-four million, eight hundred eighty-eight thousand, six hundred forty-six".