23406619 has 2 divisors, whose sum is σ = 23406620. Its totient is φ = 23406618.

The previous prime is 23406589. The next prime is 23406629. The reversal of 23406619 is 91660432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23406619 - 2⁹ = 23406107 is a prime.

It is a super-2 number, since 2×23406619² = 1095739626022322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23406629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11703309 + 11703310.

It is an arithmetic number, because the mean of its divisors is an integer number (11703310).

Almost surely, 2^23406619 is an apocalyptic number.

23406619 is a deficient number, since it is larger than the sum of its proper divisors (1).

23406619 is an equidigital number, since it uses as much as digits as its factorization.

23406619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 23406619 is about 4838.0387555289. The cubic root of 23406619 is about 286.0528167896.

It can be divided in two parts, 23406 and 619, that added together give a square (24025 = 155²).

The spelling of 23406619 in words is "twenty-three million, four hundred six thousand, six hundred nineteen".