64646134 has 8 divisors (see below), whose sum is σ = 110821968. Its totient is φ = 27705480.

The previous prime is 64646119. The next prime is 64646137. The reversal of 64646134 is 43164646.

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

It is a super-2 number, since 2×64646134² = 8358245282291912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64646134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64646137) 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, 2308777 + ... + 2308804.

It is an arithmetic number, because the mean of its divisors is an integer number (13852746).

Almost surely, 2^64646134 is an apocalyptic number.

64646134 is a deficient number, since it is larger than the sum of its proper divisors (46175834).

64646134 is a wasteful number, since it uses less digits than its factorization.

64646134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617590.

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

The square root of 64646134 is about 8040.2819602300. The cubic root of 64646134 is about 401.3416076912.

The spelling of 64646134 in words is "sixty-four million, six hundred forty-six thousand, one hundred thirty-four".