23941487 has 2 divisors, whose sum is σ = 23941488. Its totient is φ = 23941486.

The previous prime is 23941483. The next prime is 23941493. The reversal of 23941487 is 78414932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23941487 - 2² = 23941483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23941487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23941483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11970743 + 11970744.

It is an arithmetic number, because the mean of its divisors is an integer number (11970744).

Almost surely, 2^23941487 is an apocalyptic number.

23941487 is a deficient number, since it is larger than the sum of its proper divisors (1).

23941487 is an equidigital number, since it uses as much as digits as its factorization.

23941487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 23941487 is about 4893.0038830968. The cubic root of 23941487 is about 288.2153056600.

Subtracting from 23941487 its sum of digits (38), we obtain a square (23941449 = 4893²).

The spelling of 23941487 in words is "twenty-three million, nine hundred forty-one thousand, four hundred eighty-seven".