104002785 has 32 divisors (see below), whose sum is σ = 187196160. Its totient is φ = 55462320.

The previous prime is 104002777. The next prime is 104002793. The reversal of 104002785 is 587200401.

It is an interprime number because it is at equal distance from previous prime (104002777) and next prime (104002793).

It is not a de Polignac number, because 104002785 - 2³ = 104002777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6180 + ... + 15690.

It is an arithmetic number, because the mean of its divisors is an integer number (5849880).

Almost surely, 2^104002785 is an apocalyptic number.

104002785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104002785 is a deficient number, since it is larger than the sum of its proper divisors (83193375).

104002785 is an frugal number, since it uses more digits than its factorization.

104002785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9537 (or 9519 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 104002785 is about 10198.1755721305. The cubic root of 104002785 is about 470.2711352420.

The spelling of 104002785 in words is "one hundred four million, two thousand, seven hundred eighty-five".