1083641685 has 64 divisors (see below), whose sum is σ = 2044514304. Its totient is φ = 479808000.

The previous prime is 1083641651. The next prime is 1083641707. The reversal of 1083641685 is 5861463801.

It is not a de Polignac number, because 1083641685 - 2⁶ = 1083641621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 649222 + ... + 650888.

It is an arithmetic number, because the mean of its divisors is an integer number (31945536).

Almost surely, 2^1083641685 is an apocalyptic number.

1083641685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1083641685 is a deficient number, since it is larger than the sum of its proper divisors (960872619).

1083641685 is a wasteful number, since it uses less digits than its factorization.

1083641685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1083641685 is about 32918.7132950242. The cubic root of 1083641685 is about 1027.1374583053.

The spelling of 1083641685 in words is "one billion, eighty-three million, six hundred forty-one thousand, six hundred eighty-five".