104424781 has 4 divisors (see below), whose sum is σ = 104760864. Its totient is φ = 104088700.

The previous prime is 104424763. The next prime is 104424791. The reversal of 104424781 is 187424401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 104424781 - 2²³ = 96036173 is a prime.

It is a super-2 number, since 2×104424781² = 21809069773795922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104424731) 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, 167575 + ... + 168196.

It is an arithmetic number, because the mean of its divisors is an integer number (26190216).

Almost surely, 2^104424781 is an apocalyptic number.

It is an amenable number.

104424781 is a deficient number, since it is larger than the sum of its proper divisors (336083).

104424781 is an equidigital number, since it uses as much as digits as its factorization.

104424781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336082.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 104424781 is about 10218.8444062917. The cubic root of 104424781 is about 470.9063257046.

The spelling of 104424781 in words is "one hundred four million, four hundred twenty-four thousand, seven hundred eighty-one".