23971016 has 8 divisors (see below), whose sum is σ = 44945670. Its totient is φ = 11985504.

The previous prime is 23971009. The next prime is 23971043. The reversal of 23971016 is 61017932.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 11930116 = 3470^2 + 3454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×23971016³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23971016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1498181 + ... + 1498196.

Almost surely, 2^23971016 is an apocalyptic number.

It is an amenable number.

23971016 is a deficient number, since it is larger than the sum of its proper divisors (20974654).

23971016 is a wasteful number, since it uses less digits than its factorization.

23971016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996383 (or 2996379 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 23971016 is about 4896.0204247940. The cubic root of 23971016 is about 288.3337501711. Note that the first 3 decimals are identical.

Adding to 23971016 its reverse (61017932), we get a palindrome (84988948).

The spelling of 23971016 in words is "twenty-three million, nine hundred seventy-one thousand, sixteen".