64764969 has 8 divisors (see below), whose sum is σ = 86984160. Its totient is φ = 42861216.

The previous prime is 64764967. The next prime is 64764971. The reversal of 64764969 is 96946746.

It is an interprime number because it is at equal distance from previous prime (64764967) and next prime (64764971).

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

It is not a de Polignac number, because 64764969 - 2¹ = 64764967 is a prime.

It is a super-2 number, since 2×64764969² = 8389002419141922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64764967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78379 + ... + 79200.

It is an arithmetic number, because the mean of its divisors is an integer number (10873020).

Almost surely, 2^64764969 is an apocalyptic number.

It is an amenable number.

64764969 is a deficient number, since it is larger than the sum of its proper divisors (22219191).

64764969 is a wasteful number, since it uses less digits than its factorization.

64764969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157719.

The product of its digits is 1959552, while the sum is 51.

The square root of 64764969 is about 8047.6685443674. The cubic root of 64764969 is about 401.5873776641.

The spelling of 64764969 in words is "sixty-four million, seven hundred sixty-four thousand, nine hundred sixty-nine".