23000778 has 24 divisors (see below), whose sum is σ = 49923588. Its totient is φ = 7653312.

The previous prime is 23000777. The next prime is 23000821. The reversal of 23000778 is 87700032.

It can be written as a sum of positive squares in 2 ways, for example, as 18948609 + 4052169 = 4353^2 + 2013^2 .

It is not an unprimeable number, because it can be changed into a prime (23000777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17976 + ... + 19212.

Almost surely, 2^23000778 is an apocalyptic number.

23000778 is an abundant number, since it is smaller than the sum of its proper divisors (26922810).

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

23000778 is a wasteful number, since it uses less digits than its factorization.

23000778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278 (or 2275 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 23000778 is about 4795.9126347339. The cubic root of 23000778 is about 284.3899045121.

The spelling of 23000778 in words is "twenty-three million, seven hundred seventy-eight", and thus it is an aban number.