64964577 has 8 divisors (see below), whose sum is σ = 86902816. Its totient is φ = 43168032.

The previous prime is 64964567. The next prime is 64964587. The reversal of 64964577 is 77546946.

It is an interprime number because it is at equal distance from previous prime (64964567) and next prime (64964587).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64964577 - 2¹⁵ = 64931809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64964567) 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 7 ways as a sum of consecutive naturals, for example, 34348 + ... + 36189.

It is an arithmetic number, because the mean of its divisors is an integer number (10862852).

Almost surely, 2^64964577 is an apocalyptic number.

It is an amenable number.

64964577 is a deficient number, since it is larger than the sum of its proper divisors (21938239).

64964577 is a wasteful number, since it uses less digits than its factorization.

64964577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70847.

The product of its digits is 1270080, while the sum is 48.

The square root of 64964577 is about 8060.0606077126. The cubic root of 64964577 is about 401.9995235261. Note that the first 3 decimals are identical.

The spelling of 64964577 in words is "sixty-four million, nine hundred sixty-four thousand, five hundred seventy-seven".