981322788 has 12 divisors (see below), whose sum is σ = 2289753200. Its totient is φ = 327107592.

The previous prime is 981322759. The next prime is 981322801. The reversal of 981322788 is 887223189.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40888438 + ... + 40888461.

Almost surely, 2^981322788 is an apocalyptic number.

It is an amenable number.

981322788 is an abundant number, since it is smaller than the sum of its proper divisors (1308430412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981322788 is a wasteful number, since it uses less digits than its factorization.

981322788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81776906 (or 81776904 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 981322788 is about 31326.0720167722. The cubic root of 981322788 is about 993.7350956034.

The spelling of 981322788 in words is "nine hundred eighty-one million, three hundred twenty-two thousand, seven hundred eighty-eight".