104787427 has 4 divisors (see below), whose sum is σ = 104831056. Its totient is φ = 104743800.

The previous prime is 104787421. The next prime is 104787437. The reversal of 104787427 is 724787401.

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-104787427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104787427.

It is not an unprimeable number, because it can be changed into a prime (104787421) 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, 17988 + ... + 23089.

It is an arithmetic number, because the mean of its divisors is an integer number (26207764).

Almost surely, 2^104787427 is an apocalyptic number.

104787427 is a deficient number, since it is larger than the sum of its proper divisors (43629).

104787427 is an equidigital number, since it uses as much as digits as its factorization.

104787427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43628.

The product of its (nonzero) digits is 87808, while the sum is 40.

The square root of 104787427 is about 10236.5730105343. The cubic root of 104787427 is about 471.4508164806.

The spelling of 104787427 in words is "one hundred four million, seven hundred eighty-seven thousand, four hundred twenty-seven".