23689806 has 32 divisors (see below), whose sum is σ = 57335040. Its totient is φ = 6370176.

The previous prime is 23689769. The next prime is 23689819. The reversal of 23689806 is 60898632.

23689806 = T₄₆ + T₄₇ + ... + T₅₂₁.

It is a super-2 number, since 2×23689806² = 1122413816635272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15876 + ... + 17303.

It is an arithmetic number, because the mean of its divisors is an integer number (1791720).

Almost surely, 2^23689806 is an apocalyptic number.

23689806 is an abundant number, since it is smaller than the sum of its proper divisors (33645234).

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

23689806 is a wasteful number, since it uses less digits than its factorization.

23689806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33208.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 23689806 is about 4867.2174802447. The cubic root of 23689806 is about 287.2018070173.

The spelling of 23689806 in words is "twenty-three million, six hundred eighty-nine thousand, eight hundred six".