64261323 has 16 divisors (see below), whose sum is σ = 108802560. Its totient is φ = 36720648.

The previous prime is 64261291. The next prime is 64261331. The reversal of 64261323 is 32316246.

64261323 is a `hidden beast` number, since 6 + 42 + 613 + 2 + 3 = 666.

It is not a de Polignac number, because 64261323 - 2⁵ = 64261291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (64261723) 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, 169815 + ... + 170192.

It is an arithmetic number, because the mean of its divisors is an integer number (6800160).

Almost surely, 2^64261323 is an apocalyptic number.

64261323 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

64261323 is a deficient number, since it is larger than the sum of its proper divisors (44541237).

64261323 is a wasteful number, since it uses less digits than its factorization.

64261323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340023 (or 340017 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 64261323 is about 8016.3160491587. The cubic root of 64261323 is about 400.5436836022.

Adding to 64261323 its reverse (32316246), we get a palindrome (96577569).

The spelling of 64261323 in words is "sixty-four million, two hundred sixty-one thousand, three hundred twenty-three".