1083670785 has 16 divisors (see below), whose sum is σ = 1926526080. Its totient is φ = 577957680.

The previous prime is 1083670769. The next prime is 1083670787. The reversal of 1083670785 is 5870763801.

It is not a de Polignac number, because 1083670785 - 2⁴ = 1083670769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1083670785.

It is not an unprimeable number, because it can be changed into a prime (1083670787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4013461 + ... + 4013730.

It is an arithmetic number, because the mean of its divisors is an integer number (120407880).

Almost surely, 2^1083670785 is an apocalyptic number.

1083670785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1083670785 is a deficient number, since it is larger than the sum of its proper divisors (842855295).

1083670785 is an equidigital number, since it uses as much as digits as its factorization.

1083670785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8027205 (or 8027199 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1083670785 is about 32919.1552898916. The cubic root of 1083670785 is about 1027.1466524368.

The spelling of 1083670785 in words is "one billion, eighty-three million, six hundred seventy thousand, seven hundred eighty-five".