23686473 has 4 divisors (see below), whose sum is σ = 31581968. Its totient is φ = 15790980.

The previous prime is 23686451. The next prime is 23686477. The reversal of 23686473 is 37468632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23686473 - 2⁶ = 23686409 is a prime.

It is a super-2 number, since 2×23686473² = 1122098006359458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23686477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947743 + ... + 3947748.

It is an arithmetic number, because the mean of its divisors is an integer number (7895492).

Almost surely, 2^23686473 is an apocalyptic number.

It is an amenable number.

23686473 is a deficient number, since it is larger than the sum of its proper divisors (7895495).

23686473 is an equidigital number, since it uses as much as digits as its factorization.

23686473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895494.

The product of its digits is 145152, while the sum is 39.

The square root of 23686473 is about 4866.8750754463. The cubic root of 23686473 is about 287.1883372501.

The spelling of 23686473 in words is "twenty-three million, six hundred eighty-six thousand, four hundred seventy-three".