65922813 has 24 divisors (see below), whose sum is σ = 104322816. Its totient is φ = 39782400.

The previous prime is 65922809. The next prime is 65922823. The reversal of 65922813 is 31822956.

It is not a de Polignac number, because 65922813 - 2² = 65922809 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65922823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24148 + ... + 26738.

It is an arithmetic number, because the mean of its divisors is an integer number (4346784).

Almost surely, 2^65922813 is an apocalyptic number.

It is an amenable number.

65922813 is a deficient number, since it is larger than the sum of its proper divisors (38400003).

65922813 is a wasteful number, since it uses less digits than its factorization.

65922813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865 (or 2862 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 65922813 is about 8119.2864834294. The cubic root of 65922813 is about 403.9663996007.

The spelling of 65922813 in words is "sixty-five million, nine hundred twenty-two thousand, eight hundred thirteen".