64864367 has 8 divisors (see below), whose sum is σ = 70536816. Its totient is φ = 59398272.

The previous prime is 64864351. The next prime is 64864433. The reversal of 64864367 is 76346846.

It is a happy number.

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

It is not a de Polignac number, because 64864367 - 2⁴ = 64864351 is a prime.

It is a super-2 number, since 2×64864367² = 8414772212621378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64864067) 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, 50933 + ... + 52190.

It is an arithmetic number, because the mean of its divisors is an integer number (8817102).

Almost surely, 2^64864367 is an apocalyptic number.

64864367 is a deficient number, since it is larger than the sum of its proper divisors (5672449).

64864367 is a wasteful number, since it uses less digits than its factorization.

64864367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103177.

The product of its digits is 580608, while the sum is 44.

The square root of 64864367 is about 8053.8417540948. The cubic root of 64864367 is about 401.7927179858.

The spelling of 64864367 in words is "sixty-four million, eight hundred sixty-four thousand, three hundred sixty-seven".