1983946625 has 8 divisors (see below), whose sum is σ = 2475965544. Its totient is φ = 1587157200.

The previous prime is 1983946609. The next prime is 1983946651. The reversal of 1983946625 is 5266493891.

It can be written as a sum of positive squares in 4 ways, for example, as 31013761 + 1952932864 = 5569^2 + 44192^2 .

It is not a de Polignac number, because 1983946625 - 2⁴ = 1983946609 is a prime.

It is a super-3 number, since 3×1983946625³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7935662 + ... + 7935911.

It is an arithmetic number, because the mean of its divisors is an integer number (309495693).

Almost surely, 2^1983946625 is an apocalyptic number.

It is an amenable number.

1983946625 is a deficient number, since it is larger than the sum of its proper divisors (492018919).

1983946625 is an equidigital number, since it uses as much as digits as its factorization.

1983946625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15871588 (or 15871578 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 53.

The square root of 1983946625 is about 44541.5157465482. The cubic root of 1983946625 is about 1256.5409926302.

The spelling of 1983946625 in words is "one billion, nine hundred eighty-three million, nine hundred forty-six thousand, six hundred twenty-five".