981960772 has 24 divisors (see below), whose sum is σ = 1851759000. Its totient is φ = 452933376.

The previous prime is 981960769. The next prime is 981960821. The reversal of 981960772 is 277069189.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 142468096 + 839492676 = 11936^2 + 28974^2 .

It is a super-3 number, since 3×981960772³ (a number of 28 digits) contains 333 as substring.

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, 96504 + ... + 106192.

It is an arithmetic number, because the mean of its divisors is an integer number (77156625).

Almost surely, 2^981960772 is an apocalyptic number.

It is an amenable number.

981960772 is a deficient number, since it is larger than the sum of its proper divisors (869798228).

981960772 is a wasteful number, since it uses less digits than its factorization.

981960772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11655 (or 11653 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 981960772 is about 31336.2533178426. The cubic root of 981960772 is about 993.9504001420.

The spelling of 981960772 in words is "nine hundred eighty-one million, nine hundred sixty thousand, seven hundred seventy-two".