64442695 has 4 divisors (see below), whose sum is σ = 77331240. Its totient is φ = 51554152.

The previous prime is 64442683. The next prime is 64442717. The reversal of 64442695 is 59624446.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64442695 - 2⁵ = 64442663 is a prime.

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, 6444265 + ... + 6444274.

It is an arithmetic number, because the mean of its divisors is an integer number (19332810).

Almost surely, 2^64442695 is an apocalyptic number.

64442695 is a deficient number, since it is larger than the sum of its proper divisors (12888545).

64442695 is a wasteful number, since it uses less digits than its factorization.

64442695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12888544.

The product of its digits is 207360, while the sum is 40.

The square root of 64442695 is about 8027.6207558653. The cubic root of 64442695 is about 400.9201628776.

The spelling of 64442695 in words is "sixty-four million, four hundred forty-two thousand, six hundred ninety-five".