23523407 has 2 divisors, whose sum is σ = 23523408. Its totient is φ = 23523406.

The previous prime is 23523403. The next prime is 23523413. The reversal of 23523407 is 70432532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23523407 - 2² = 23523403 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23523403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11761703 + 11761704.

It is an arithmetic number, because the mean of its divisors is an integer number (11761704).

Almost surely, 2^23523407 is an apocalyptic number.

23523407 is a deficient number, since it is larger than the sum of its proper divisors (1).

23523407 is an equidigital number, since it uses as much as digits as its factorization.

23523407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 23523407 is about 4850.0935042533. The cubic root of 23523407 is about 286.5277839666.

Adding to 23523407 its reverse (70432532), we get a palindrome (93955939).

The spelling of 23523407 in words is "twenty-three million, five hundred twenty-three thousand, four hundred seven".