1683494872 has 8 divisors (see below), whose sum is σ = 3156552900. Its totient is φ = 841747432.

The previous prime is 1683494861. The next prime is 1683494873. The reversal of 1683494872 is 2784943861.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683494873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105218422 + ... + 105218437.

Almost surely, 2^1683494872 is an apocalyptic number.

It is an amenable number.

1683494872 is a deficient number, since it is larger than the sum of its proper divisors (1473058028).

1683494872 is a wasteful number, since it uses less digits than its factorization.

1683494872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210436865 (or 210436861 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The square root of 1683494872 is about 41030.4139876750. The cubic root of 1683494872 is about 1189.6081547708.

The spelling of 1683494872 in words is "one billion, six hundred eighty-three million, four hundred ninety-four thousand, eight hundred seventy-two".