104437649 has 2 divisors, whose sum is σ = 104437650. Its totient is φ = 104437648.

The previous prime is 104437639. The next prime is 104437721. The reversal of 104437649 is 946734401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92775424 + 11662225 = 9632^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 104437649 - 2⁸ = 104437393 is a prime.

It is not a weakly prime, because it can be changed into another prime (104437609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52218824 + 52218825.

It is an arithmetic number, because the mean of its divisors is an integer number (52218825).

Almost surely, 2^104437649 is an apocalyptic number.

It is an amenable number.

104437649 is a deficient number, since it is larger than the sum of its proper divisors (1).

104437649 is an equidigital number, since it uses as much as digits as its factorization.

104437649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 104437649 is about 10219.4740079908. The cubic root of 104437649 is about 470.9256677728.

The spelling of 104437649 in words is "one hundred four million, four hundred thirty-seven thousand, six hundred forty-nine".