64364547 has 16 divisors (see below), whose sum is σ = 94677408. Its totient is φ = 38641920.

The previous prime is 64364527. The next prime is 64364549. The reversal of 64364547 is 74546346.

It is a happy number.

It is not a de Polignac number, because 64364547 - 2⁶ = 64364483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (64364549) 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, 18528 + ... + 21725.

It is an arithmetic number, because the mean of its divisors is an integer number (5917338).

Almost surely, 2^64364547 is an apocalyptic number.

64364547 is a deficient number, since it is larger than the sum of its proper divisors (30312861).

64364547 is a wasteful number, since it uses less digits than its factorization.

64364547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40310.

The product of its digits is 241920, while the sum is 39.

The square root of 64364547 is about 8022.7518346263. The cubic root of 64364547 is about 400.7580354648.

The spelling of 64364547 in words is "sixty-four million, three hundred sixty-four thousand, five hundred forty-seven".