23313516 has 12 divisors (see below), whose sum is σ = 54398232. Its totient is φ = 7771168.

The previous prime is 23313509. The next prime is 23313533. The reversal of 23313516 is 61531332.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971385 + ... + 971408.

It is an arithmetic number, because the mean of its divisors is an integer number (4533186).

Almost surely, 2^23313516 is an apocalyptic number.

It is an amenable number.

23313516 is an abundant number, since it is smaller than the sum of its proper divisors (31084716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23313516 is a wasteful number, since it uses less digits than its factorization.

23313516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942800 (or 1942798 counting only the distinct ones).

The product of its digits is 1620, while the sum is 24.

The square root of 23313516 is about 4828.4071907825. The cubic root of 23313516 is about 285.6730415227.

Adding to 23313516 its reverse (61531332), we get a palindrome (84844848).

The spelling of 23313516 in words is "twenty-three million, three hundred thirteen thousand, five hundred sixteen".