64674695 has 4 divisors (see below), whose sum is σ = 77609640. Its totient is φ = 51739752.

The previous prime is 64674691. The next prime is 64674697. The reversal of 64674695 is 59647646.

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 64674695 - 2² = 64674691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64674691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6467465 + ... + 6467474.

It is an arithmetic number, because the mean of its divisors is an integer number (19402410).

Almost surely, 2^64674695 is an apocalyptic number.

64674695 is a deficient number, since it is larger than the sum of its proper divisors (12934945).

64674695 is a wasteful number, since it uses less digits than its factorization.

64674695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12934944.

The product of its digits is 1088640, while the sum is 47.

The square root of 64674695 is about 8042.0578834027. The cubic root of 64674695 is about 401.4007039293.

The spelling of 64674695 in words is "sixty-four million, six hundred seventy-four thousand, six hundred ninety-five".