64823955 has 32 divisors (see below), whose sum is σ = 119232000. Its totient is φ = 29459712.

The previous prime is 64823893. The next prime is 64823981. The reversal of 64823955 is 55932846.

It is not a de Polignac number, because 64823955 - 2⁸ = 64823699 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17071 + ... + 20519.

It is an arithmetic number, because the mean of its divisors is an integer number (3726000).

Almost surely, 2^64823955 is an apocalyptic number.

64823955 is a deficient number, since it is larger than the sum of its proper divisors (54408045).

64823955 is a wasteful number, since it uses less digits than its factorization.

64823955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643.

The product of its digits is 259200, while the sum is 42.

The square root of 64823955 is about 8051.3324984129. The cubic root of 64823955 is about 401.7092586007.

The spelling of 64823955 in words is "sixty-four million, eight hundred twenty-three thousand, nine hundred fifty-five".