104256789 has 32 divisors (see below), whose sum is σ = 171650304. Its totient is φ = 54812160.

The previous prime is 104256773. The next prime is 104256791. The reversal of 104256789 is 987652401.

It is not a de Polignac number, because 104256789 - 2⁴ = 104256773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104256789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104256709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141867 + ... + 142599.

It is an arithmetic number, because the mean of its divisors is an integer number (5364072).

Almost surely, 2^104256789 is an apocalyptic number.

It is an amenable number.

104256789 is a deficient number, since it is larger than the sum of its proper divisors (67393515).

104256789 is a wasteful number, since it uses less digits than its factorization.

104256789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 104256789 is about 10210.6213816790. The cubic root of 104256789 is about 470.6536687068.

The spelling of 104256789 in words is "one hundred four million, two hundred fifty-six thousand, seven hundred eighty-nine".