104387557 has 2 divisors, whose sum is σ = 104387558. Its totient is φ = 104387556.

The previous prime is 104387533. The next prime is 104387597. The reversal of 104387557 is 755783401.

It is an a-pointer prime, because the next prime (104387597) can be obtained adding 104387557 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101727396 + 2660161 = 10086^2 + 1631^2 .

It is a cyclic number.

It is not a de Polignac number, because 104387557 - 2¹¹ = 104385509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104387527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52193778 + 52193779.

It is an arithmetic number, because the mean of its divisors is an integer number (52193779).

Almost surely, 2^104387557 is an apocalyptic number.

It is an amenable number.

104387557 is a deficient number, since it is larger than the sum of its proper divisors (1).

104387557 is an equidigital number, since it uses as much as digits as its factorization.

104387557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 104387557 is about 10217.0229029791. The cubic root of 104387557 is about 470.8503648489.

The spelling of 104387557 in words is "one hundred four million, three hundred eighty-seven thousand, five hundred fifty-seven".