64609377 has 16 divisors (see below), whose sum is σ = 98567040. Its totient is φ = 36876672.

The previous prime is 64609357. The next prime is 64609387. The reversal of 64609377 is 77390646.

It is not a de Polignac number, because 64609377 - 2¹⁰ = 64608353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64609327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28933 + ... + 31085.

It is an arithmetic number, because the mean of its divisors is an integer number (6160440).

Almost surely, 2^64609377 is an apocalyptic number.

It is an amenable number.

64609377 is a deficient number, since it is larger than the sum of its proper divisors (33957663).

64609377 is a wasteful number, since it uses less digits than its factorization.

64609377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 64609377 is about 8037.9958322955. The cubic root of 64609377 is about 401.2655272958.

The spelling of 64609377 in words is "sixty-four million, six hundred nine thousand, three hundred seventy-seven".