23970491 has 2 divisors, whose sum is σ = 23970492. Its totient is φ = 23970490.

The previous prime is 23970481. The next prime is 23970503. The reversal of 23970491 is 19407932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23970491 - 2¹⁰ = 23969467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (23970421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11985245 + 11985246.

It is an arithmetic number, because the mean of its divisors is an integer number (11985246).

Almost surely, 2^23970491 is an apocalyptic number.

23970491 is a deficient number, since it is larger than the sum of its proper divisors (1).

23970491 is an equidigital number, since it uses as much as digits as its factorization.

23970491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 23970491 is about 4895.9668095280. The cubic root of 23970491 is about 288.3316451800.

The spelling of 23970491 in words is "twenty-three million, nine hundred seventy thousand, four hundred ninety-one".