23430681 has 8 divisors (see below), whose sum is σ = 34712160. Its totient is φ = 15620436.

The previous prime is 23430679. The next prime is 23430683. The reversal of 23430681 is 18603432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23430679) and next prime (23430683).

It is not a de Polignac number, because 23430681 - 2¹ = 23430679 is a prime.

It is a super-2 number, since 2×23430681² = 1097993624247522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 867803 = 23430681 / (2 + 3 + 4 + 3 + 0 + 6 + 8 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23430683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433875 + ... + 433928.

It is an arithmetic number, because the mean of its divisors is an integer number (4339020).

Almost surely, 2^23430681 is an apocalyptic number.

It is an amenable number.

23430681 is a deficient number, since it is larger than the sum of its proper divisors (11281479).

23430681 is an equidigital number, since it uses as much as digits as its factorization.

23430681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867812 (or 867806 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 23430681 is about 4840.5248682348. The cubic root of 23430681 is about 286.1508039679.

The spelling of 23430681 in words is "twenty-three million, four hundred thirty thousand, six hundred eighty-one".