64313823 has 12 divisors (see below), whose sum is σ = 99752280. Its totient is φ = 36750672.

The previous prime is 64313797. The next prime is 64313849. The reversal of 64313823 is 32831346.

It is an interprime number because it is at equal distance from previous prime (64313797) and next prime (64313849).

It is not a de Polignac number, because 64313823 - 2⁹ = 64313311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64313863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218608 + ... + 218901.

It is an arithmetic number, because the mean of its divisors is an integer number (8312690).

Almost surely, 2^64313823 is an apocalyptic number.

64313823 is a deficient number, since it is larger than the sum of its proper divisors (35438457).

64313823 is a wasteful number, since it uses less digits than its factorization.

64313823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437526 (or 437519 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 64313823 is about 8019.5899521110. The cubic root of 64313823 is about 400.6527321890.

The spelling of 64313823 in words is "sixty-four million, three hundred thirteen thousand, eight hundred twenty-three".