104987243 has 4 divisors (see below), whose sum is σ = 105012120. Its totient is φ = 104962368.

The previous prime is 104987171. The next prime is 104987303. The reversal of 104987243 is 342789401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104987243 is a prime.

It is a super-2 number, since 2×104987243² = 22044642385482098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104987197 and 104987206.

It is not an unprimeable number, because it can be changed into a prime (104987843) 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, 4358 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (26253030).

Almost surely, 2^104987243 is an apocalyptic number.

104987243 is a deficient number, since it is larger than the sum of its proper divisors (24877).

104987243 is an equidigital number, since it uses as much as digits as its factorization.

104987243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24876.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 104987243 is about 10246.3282691899. The cubic root of 104987243 is about 471.7502913461.

The spelling of 104987243 in words is "one hundred four million, nine hundred eighty-seven thousand, two hundred forty-three".