23486681 has 2 divisors, whose sum is σ = 23486682. Its totient is φ = 23486680.

The previous prime is 23486677. The next prime is 23486731. The reversal of 23486681 is 18668432.

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., 22705225 + 781456 = 4765^2 + 884^2 .

It is a cyclic number.

It is not a de Polignac number, because 23486681 - 2² = 23486677 is a prime.

It is a super-2 number, since 2×23486681² = 1103248368791522, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1476947 and since 23486681 and 1476947 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (23416681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11743340 + 11743341.

It is an arithmetic number, because the mean of its divisors is an integer number (11743341).

Almost surely, 2^23486681 is an apocalyptic number.

It is an amenable number.

23486681 is a deficient number, since it is larger than the sum of its proper divisors (1).

23486681 is an equidigital number, since it uses as much as digits as its factorization.

23486681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 23486681 is about 4846.3059127546. The cubic root of 23486681 is about 286.3785921352.

The spelling of 23486681 in words is "twenty-three million, four hundred eighty-six thousand, six hundred eighty-one".