23478845 has 8 divisors (see below), whose sum is σ = 30341976. Its totient is φ = 17338176.

The previous prime is 23478827. The next prime is 23478857. The reversal of 23478845 is 54887432.

It can be written as a sum of positive squares in 4 ways, for example, as 573049 + 22905796 = 757^2 + 4786^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23478845 - 2⁶ = 23478781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180542 + ... + 180671.

It is an arithmetic number, because the mean of its divisors is an integer number (3792747).

Almost surely, 2^23478845 is an apocalyptic number.

It is an amenable number.

23478845 is a deficient number, since it is larger than the sum of its proper divisors (6863131).

23478845 is a wasteful number, since it uses less digits than its factorization.

23478845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361231.

The product of its digits is 215040, while the sum is 41.

The square root of 23478845 is about 4845.4973944890. The cubic root of 23478845 is about 286.3467398660.

The spelling of 23478845 in words is "twenty-three million, four hundred seventy-eight thousand, eight hundred forty-five".