104636431 has 2 divisors, whose sum is σ = 104636432. Its totient is φ = 104636430.

The previous prime is 104636393. The next prime is 104636447. The reversal of 104636431 is 134636401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104636431 - 2²⁵ = 71081999 is a prime.

It is a super-2 number, since 2×104636431² = 21897565384835522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104636431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104636461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52318215 + 52318216.

It is an arithmetic number, because the mean of its divisors is an integer number (52318216).

Almost surely, 2^104636431 is an apocalyptic number.

104636431 is a deficient number, since it is larger than the sum of its proper divisors (1).

104636431 is an equidigital number, since it uses as much as digits as its factorization.

104636431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 104636431 is about 10229.1950318683. The cubic root of 104636431 is about 471.2242581046.

The spelling of 104636431 in words is "one hundred four million, six hundred thirty-six thousand, four hundred thirty-one".