23701919 has 2 divisors, whose sum is σ = 23701920. Its totient is φ = 23701918.

The previous prime is 23701913. The next prime is 23701921. The reversal of 23701919 is 91910732.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23701919 is a prime.

It is a super-2 number, since 2×23701919² = 1123561928565122, which contains 22 as substring.

Together with 23701921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23701913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11850959 + 11850960.

It is an arithmetic number, because the mean of its divisors is an integer number (11850960).

Almost surely, 2^23701919 is an apocalyptic number.

23701919 is a deficient number, since it is larger than the sum of its proper divisors (1).

23701919 is an equidigital number, since it uses as much as digits as its factorization.

23701919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 23701919 is about 4868.4616666869. The cubic root of 23701919 is about 287.2507490633.

The spelling of 23701919 in words is "twenty-three million, seven hundred one thousand, nine hundred nineteen".