23870216 has 8 divisors (see below), whose sum is σ = 44756670. Its totient is φ = 11935104.

The previous prime is 23870191. The next prime is 23870221. The reversal of 23870216 is 61207832.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20666116 + 3204100 = 4546^2 + 1790^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1491881 + ... + 1491896.

Almost surely, 2^23870216 is an apocalyptic number.

It is an amenable number.

23870216 is a deficient number, since it is larger than the sum of its proper divisors (20886454).

23870216 is a wasteful number, since it uses less digits than its factorization.

23870216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983783 (or 2983779 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 23870216 is about 4885.7155054301. The cubic root of 23870216 is about 287.9290270072.

The spelling of 23870216 in words is "twenty-three million, eight hundred seventy thousand, two hundred sixteen".