1083680643 has 16 divisors (see below), whose sum is σ = 1470873600. Its totient is φ = 709579200.

The previous prime is 1083680639. The next prime is 1083680687. The reversal of 1083680643 is 3460863801.

It is not a de Polignac number, because 1083680643 - 2² = 1083680639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1083680603) 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, 26878 + ... + 53756.

It is an arithmetic number, because the mean of its divisors is an integer number (91929600).

Almost surely, 2^1083680643 is an apocalyptic number.

1083680643 is a deficient number, since it is larger than the sum of its proper divisors (387192957).

1083680643 is a wasteful number, since it uses less digits than its factorization.

1083680643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27122.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 1083680643 is about 32919.3050200031. The cubic root of 1083680643 is about 1027.1497670300.

The spelling of 1083680643 in words is "one billion, eighty-three million, six hundred eighty thousand, six hundred forty-three".