981941788 has 6 divisors (see below), whose sum is σ = 1718398136. Its totient is φ = 490970892.

The previous prime is 981941713. The next prime is 981941791. The reversal of 981941788 is 887149189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122742720 + ... + 122742727.

Almost surely, 2^981941788 is an apocalyptic number.

It is an amenable number.

981941788 is a deficient number, since it is larger than the sum of its proper divisors (736456348).

981941788 is a wasteful number, since it uses less digits than its factorization.

981941788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245485451 (or 245485449 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 55.

The square root of 981941788 is about 31335.9504084366. The cubic root of 981941788 is about 993.9439948365.

The spelling of 981941788 in words is "nine hundred eighty-one million, nine hundred forty-one thousand, seven hundred eighty-eight".