64297678 has 16 divisors (see below), whose sum is σ = 97732656. Its totient is φ = 31722880.

The previous prime is 64297643. The next prime is 64297697. The reversal of 64297678 is 87679246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65733 + ... + 66703.

It is an arithmetic number, because the mean of its divisors is an integer number (6108291).

Almost surely, 2^64297678 is an apocalyptic number.

64297678 is a deficient number, since it is larger than the sum of its proper divisors (33434978).

64297678 is a wasteful number, since it uses less digits than its factorization.

64297678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379.

The product of its digits is 1016064, while the sum is 49.

The square root of 64297678 is about 8018.5832913302. The cubic root of 64297678 is about 400.6192034730.

The spelling of 64297678 in words is "sixty-four million, two hundred ninety-seven thousand, six hundred seventy-eight".