104402993 has 4 divisors (see below), whose sum is σ = 105436788. Its totient is φ = 103369200.

The previous prime is 104402989. The next prime is 104403007. The reversal of 104402993 is 399204401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399204401 = 29 ⋅13765669.

It can be written as a sum of positive squares in 2 ways, for example, as 76440049 + 27962944 = 8743^2 + 5288^2 .

It is a cyclic number.

It is not a de Polignac number, because 104402993 - 2² = 104402989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104402953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516746 + ... + 516947.

It is an arithmetic number, because the mean of its divisors is an integer number (26359197).

Almost surely, 2^104402993 is an apocalyptic number.

It is an amenable number.

104402993 is a deficient number, since it is larger than the sum of its proper divisors (1033795).

104402993 is a wasteful number, since it uses less digits than its factorization.

104402993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033794.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 104402993 is about 10217.7782810159. The cubic root of 104402993 is about 470.8735722382.

The spelling of 104402993 in words is "one hundred four million, four hundred two thousand, nine hundred ninety-three".