981908932 has 6 divisors (see below), whose sum is σ = 1718340638. Its totient is φ = 490954464.

The previous prime is 981908909. The next prime is 981908947. The reversal of 981908932 is 239809189.

It can be written as a sum of positive squares in only one way, i.e., 791634496 + 190274436 = 28136^2 + 13794^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122738613 + ... + 122738620.

Almost surely, 2^981908932 is an apocalyptic number.

It is an amenable number.

981908932 is a deficient number, since it is larger than the sum of its proper divisors (736431706).

981908932 is a wasteful number, since it uses less digits than its factorization.

981908932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245477237 (or 245477235 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 981908932 is about 31335.4261499664. The cubic root of 981908932 is about 993.9329088473.

The spelling of 981908932 in words is "nine hundred eighty-one million, nine hundred eight thousand, nine hundred thirty-two".