23474989 has 2 divisors, whose sum is σ = 23474990. Its totient is φ = 23474988.

The previous prime is 23474981. The next prime is 23475017. The reversal of 23474989 is 98947432.

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., 17388900 + 6086089 = 4170^2 + 2467^2 .

It is a cyclic number.

It is not a de Polignac number, because 23474989 - 2³ = 23474981 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23474981) 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 as a sum of consecutive naturals, namely, 11737494 + 11737495.

It is an arithmetic number, because the mean of its divisors is an integer number (11737495).

Almost surely, 2^23474989 is an apocalyptic number.

It is an amenable number.

23474989 is a deficient number, since it is larger than the sum of its proper divisors (1).

23474989 is an equidigital number, since it uses as much as digits as its factorization.

23474989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 23474989 is about 4845.0994829828. The cubic root of 23474989 is about 286.3310631510.

The spelling of 23474989 in words is "twenty-three million, four hundred seventy-four thousand, nine hundred eighty-nine".