65423331 has 24 divisors (see below), whose sum is σ = 97768944. Its totient is φ = 42128640.

The previous prime is 65423291. The next prime is 65423377. The reversal of 65423331 is 13332456.

It is a happy number.

65423331 is a `hidden beast` number, since 654 + 2 + 3 + 3 + 3 + 1 = 666.

It is not a de Polignac number, because 65423331 - 2²² = 61229027 is a prime.

It is a super-2 number, since 2×65423331² = 8560424478271122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65423295 and 65423304.

It is not an unprimeable number, because it can be changed into a prime (65423381) 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, 38655 + ... + 40311.

It is an arithmetic number, because the mean of its divisors is an integer number (4073706).

Almost surely, 2^65423331 is an apocalyptic number.

65423331 is a deficient number, since it is larger than the sum of its proper divisors (32345613).

65423331 is a wasteful number, since it uses less digits than its factorization.

65423331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811 (or 1808 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 65423331 is about 8088.4690145911. The cubic root of 65423331 is about 402.9435584414.

Adding to 65423331 its reverse (13332456), we get a palindrome (78755787).

The spelling of 65423331 in words is "sixty-five million, four hundred twenty-three thousand, three hundred thirty-one".