23416389 has 6 divisors (see below), whose sum is σ = 33823686. Its totient is φ = 15610920.

The previous prime is 23416373. The next prime is 23416397. The reversal of 23416389 is 98361432.

It can be written as a sum of positive squares in only one way, i.e., 12723489 + 10692900 = 3567^2 + 3270^2 .

It is not a de Polignac number, because 23416389 - 2⁴ = 23416373 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23416399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1300902 + ... + 1300919.

It is an arithmetic number, because the mean of its divisors is an integer number (5637281).

Almost surely, 2^23416389 is an apocalyptic number.

It is an amenable number.

23416389 is a deficient number, since it is larger than the sum of its proper divisors (10407297).

23416389 is a wasteful number, since it uses less digits than its factorization.

23416389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601827 (or 2601824 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 23416389 is about 4839.0483568570. The cubic root of 23416389 is about 286.0926110499.

The spelling of 23416389 in words is "twenty-three million, four hundred sixteen thousand, three hundred eighty-nine".