23454649 has 9 divisors (see below), whose sum is σ = 24437647. Its totient is φ = 22510264.

The previous prime is 23454647. The next prime is 23454661. The reversal of 23454649 is 94645432.

It is a happy number.

The square root of 23454649 is 4843.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12299049 + 11155600 = 3507^2 + 3340^2 .

It is not a de Polignac number, because 23454649 - 2¹ = 23454647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23454643) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 140364 + ... + 140530.

Almost surely, 2^23454649 is an apocalyptic number.

23454649 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

23454649 is the 4843-rd square number.

23454649 is the 2422-nd centered octagonal number.

It is an amenable number.

23454649 is a deficient number, since it is larger than the sum of its proper divisors (982998).

23454649 is an frugal number, since it uses more digits than its factorization.

23454649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 196 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The cubic root of 23454649 is about 286.2483416823.

The spelling of 23454649 in words is "twenty-three million, four hundred fifty-four thousand, six hundred forty-nine".