23478785 has 16 divisors (see below), whose sum is σ = 32545152. Its totient is φ = 16070400.

The previous prime is 23478781. The next prime is 23478787. The reversal of 23478785 is 58787432.

It is a happy number.

It is not a de Polignac number, because 23478785 - 2² = 23478781 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23478781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11621 + ... + 13490.

It is an arithmetic number, because the mean of its divisors is an integer number (2034072).

Almost surely, 2^23478785 is an apocalyptic number.

It is an amenable number.

23478785 is a deficient number, since it is larger than the sum of its proper divisors (9066367).

23478785 is a wasteful number, since it uses less digits than its factorization.

23478785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25144.

The product of its digits is 376320, while the sum is 44.

The square root of 23478785 is about 4845.4912031702. The cubic root of 23478785 is about 286.3464959468.

The spelling of 23478785 in words is "twenty-three million, four hundred seventy-eight thousand, seven hundred eighty-five".