23400473 has 2 divisors, whose sum is σ = 23400474. Its totient is φ = 23400472.

The previous prime is 23400469. The next prime is 23400493. The reversal of 23400473 is 37400432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20720704 + 2679769 = 4552^2 + 1637^2 .

It is a cyclic number.

It is not a de Polignac number, because 23400473 - 2² = 23400469 is a prime.

It is not a weakly prime, because it can be changed into another prime (23400413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700236 + 11700237.

It is an arithmetic number, because the mean of its divisors is an integer number (11700237).

Almost surely, 2^23400473 is an apocalyptic number.

It is an amenable number.

23400473 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400473 is an equidigital number, since it uses as much as digits as its factorization.

23400473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 23400473 is about 4837.4035390900. The cubic root of 23400473 is about 286.0277777966.

The spelling of 23400473 in words is "twenty-three million, four hundred thousand, four hundred seventy-three".