104928991 has 2 divisors, whose sum is σ = 104928992. Its totient is φ = 104928990.

The previous prime is 104928973. The next prime is 104929007. The reversal of 104928991 is 199829401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104928991 - 2¹³ = 104920799 is a prime.

It is a super-2 number, since 2×104928991² = 22020186304556162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104928961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52464495 + 52464496.

It is an arithmetic number, because the mean of its divisors is an integer number (52464496).

Almost surely, 2^104928991 is an apocalyptic number.

104928991 is a deficient number, since it is larger than the sum of its proper divisors (1).

104928991 is an equidigital number, since it uses as much as digits as its factorization.

104928991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 104928991 is about 10243.4852955427. The cubic root of 104928991 is about 471.6630252452.

The spelling of 104928991 in words is "one hundred four million, nine hundred twenty-eight thousand, nine hundred ninety-one".