981197952 has 96 divisors (see below), whose sum is σ = 3031884720. Its totient is φ = 280336896.

The previous prime is 981197947. The next prime is 981197969. The reversal of 981197952 is 259791189.

981197952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 981197895 and 981197904.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7258 + ... + 44889.

Almost surely, 2^981197952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981197952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515942360).

981197952 is an abundant number, since it is smaller than the sum of its proper divisors (2050686768).

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

981197952 is a wasteful number, since it uses less digits than its factorization.

981197952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52178 (or 52159 counting only the distinct ones).

The product of its digits is 408240, while the sum is 51.

The square root of 981197952 is about 31324.0794278140. The cubic root of 981197952 is about 993.6929554851.

The spelling of 981197952 in words is "nine hundred eighty-one million, one hundred ninety-seven thousand, nine hundred fifty-two".