64446113 has 4 divisors (see below), whose sum is σ = 65538480. Its totient is φ = 63353748.

The previous prime is 64446103. The next prime is 64446139. The reversal of 64446113 is 31164446.

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 64446113 - 2¹² = 64442017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64446103) 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, 546095 + ... + 546212.

It is an arithmetic number, because the mean of its divisors is an integer number (16384620).

Almost surely, 2^64446113 is an apocalyptic number.

It is an amenable number.

64446113 is a deficient number, since it is larger than the sum of its proper divisors (1092367).

64446113 is a wasteful number, since it uses less digits than its factorization.

64446113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092366.

The product of its digits is 6912, while the sum is 29.

The square root of 64446113 is about 8027.8336430198. The cubic root of 64446113 is about 400.9272509367.

The spelling of 64446113 in words is "sixty-four million, four hundred forty-six thousand, one hundred thirteen".