23835431 has 2 divisors, whose sum is σ = 23835432. Its totient is φ = 23835430.

The previous prime is 23835407. The next prime is 23835433. The reversal of 23835431 is 13453832.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23835431 is a prime.

It is a super-2 number, since 2×23835431² = 1136255541911522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 23835433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23835394 and 23835403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23835433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11917715 + 11917716.

It is an arithmetic number, because the mean of its divisors is an integer number (11917716).

Almost surely, 2^23835431 is an apocalyptic number.

23835431 is a deficient number, since it is larger than the sum of its proper divisors (1).

23835431 is an equidigital number, since it uses as much as digits as its factorization.

23835431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 23835431 is about 4882.1543400429. The cubic root of 23835431 is about 287.7890969754.

The spelling of 23835431 in words is "twenty-three million, eight hundred thirty-five thousand, four hundred thirty-one".