23986836 has 18 divisors (see below), whose sum is σ = 60633482. Its totient is φ = 7995600.

The previous prime is 23986817. The next prime is 23986843. The reversal of 23986836 is 63868932.

It can be written as a sum of positive squares in only one way, i.e., 23619600 + 367236 = 4860^2 + 606^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 23986791 and 23986800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333115 + ... + 333186.

Almost surely, 2^23986836 is an apocalyptic number.

It is an amenable number.

23986836 is an abundant number, since it is smaller than the sum of its proper divisors (36646646).

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

23986836 is a wasteful number, since it uses less digits than its factorization.

23986836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666311 (or 666306 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 23986836 is about 4897.6357561583. The cubic root of 23986836 is about 288.3971661569.

The spelling of 23986836 in words is "twenty-three million, nine hundred eighty-six thousand, eight hundred thirty-six".