64738844 has 6 divisors (see below), whose sum is σ = 113292984. Its totient is φ = 32369420.

The previous prime is 64738831. The next prime is 64738847. The reversal of 64738844 is 44883746.

It is a super-2 number, since 2×64738844² = 8382235844912672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64738795 and 64738804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64738847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8092352 + ... + 8092359.

It is an arithmetic number, because the mean of its divisors is an integer number (18882164).

Almost surely, 2^64738844 is an apocalyptic number.

It is an amenable number.

64738844 is a deficient number, since it is larger than the sum of its proper divisors (48554140).

64738844 is a wasteful number, since it uses less digits than its factorization.

64738844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16184715 (or 16184713 counting only the distinct ones).

The product of its digits is 516096, while the sum is 44.

The square root of 64738844 is about 8046.0452397436. The cubic root of 64738844 is about 401.5333727423.

The spelling of 64738844 in words is "sixty-four million, seven hundred thirty-eight thousand, eight hundred forty-four".