64641346 has 32 divisors (see below), whose sum is σ = 121921920. Its totient is φ = 25177680.

The previous prime is 64641337. The next prime is 64641383. The reversal of 64641346 is 64314646.

64641346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64641346² = 8357007225383432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16900 + ... + 20368.

It is an arithmetic number, because the mean of its divisors is an integer number (3810060).

Almost surely, 2^64641346 is an apocalyptic number.

64641346 is a deficient number, since it is larger than the sum of its proper divisors (57280574).

64641346 is a wasteful number, since it uses less digits than its factorization.

64641346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511 (or 3489 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 64641346 is about 8039.9842039646. The cubic root of 64641346 is about 401.3316990241.

The spelling of 64641346 in words is "sixty-four million, six hundred forty-one thousand, three hundred forty-six".