104772391 has 2 divisors, whose sum is σ = 104772392. Its totient is φ = 104772390.

The previous prime is 104772379. The next prime is 104772397. The reversal of 104772391 is 193277401.

It is a strong prime.

It is an emirp because it is prime and its reverse (193277401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104772391 - 2⁹ = 104771879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104772397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52386195 + 52386196.

It is an arithmetic number, because the mean of its divisors is an integer number (52386196).

Almost surely, 2^104772391 is an apocalyptic number.

104772391 is a deficient number, since it is larger than the sum of its proper divisors (1).

104772391 is an equidigital number, since it uses as much as digits as its factorization.

104772391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 104772391 is about 10235.8385587113. The cubic root of 104772391 is about 471.4282658313.

The spelling of 104772391 in words is "one hundred four million, seven hundred seventy-two thousand, three hundred ninety-one".