981106972 has 24 divisors (see below), whose sum is σ = 1777233920. Its totient is φ = 473413680.

The previous prime is 981106969. The next prime is 981107053. The reversal of 981106972 is 279601189.

It is a congruent 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, 34729 + ... + 56287.

Almost surely, 2^981106972 is an apocalyptic number.

It is an amenable number.

981106972 is a deficient number, since it is larger than the sum of its proper divisors (796126948).

981106972 is a wasteful number, since it uses less digits than its factorization.

981106972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21961 (or 21959 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 981106972 is about 31322.6271567377. The cubic root of 981106972 is about 993.6622416761.

The spelling of 981106972 in words is "nine hundred eighty-one million, one hundred six thousand, nine hundred seventy-two".