1683770972 has 48 divisors (see below), whose sum is σ = 3294281760. Its totient is φ = 747677952.

The previous prime is 1683770971. The next prime is 1683770981. The reversal of 1683770972 is 2790773861.

It is a super-2 number, since 2×1683770972² = 5670169372299649568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1683770972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683770971) 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, 461138 + ... + 464774.

It is an arithmetic number, because the mean of its divisors is an integer number (68630870).

Almost surely, 2^1683770972 is an apocalyptic number.

It is an amenable number.

1683770972 is a deficient number, since it is larger than the sum of its proper divisors (1610510788).

1683770972 is a wasteful number, since it uses less digits than its factorization.

1683770972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3990 (or 3988 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 50.

The square root of 1683770972 is about 41033.7784270471. The cubic root of 1683770972 is about 1189.6731847397.

The spelling of 1683770972 in words is "one billion, six hundred eighty-three million, seven hundred seventy thousand, nine hundred seventy-two".