1690976984 has 16 divisors (see below), whose sum is σ = 3177099600. Its totient is φ = 843750432.

The previous prime is 1690976939. The next prime is 1690977007. The reversal of 1690976984 is 4896790961.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213119 + ... + 220910.

It is an arithmetic number, because the mean of its divisors is an integer number (198568725).

Almost surely, 2^1690976984 is an apocalyptic number.

It is an amenable number.

1690976984 is a deficient number, since it is larger than the sum of its proper divisors (1486122616).

1690976984 is a wasteful number, since it uses less digits than its factorization.

1690976984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434522 (or 434518 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 59.

The square root of 1690976984 is about 41121.4905371875. The cubic root of 1690976984 is about 1191.3679121800.

The spelling of 1690976984 in words is "one billion, six hundred ninety million, nine hundred seventy-six thousand, nine hundred eighty-four".