981787452 has 24 divisors (see below), whose sum is σ = 2352752976. Its totient is φ = 318417408.

The previous prime is 981787447. The next prime is 981787463. The reversal of 981787452 is 254787189.

981787452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 981787395 and 981787404.

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, 1105173 + ... + 1106060.

It is an arithmetic number, because the mean of its divisors is an integer number (98031374).

Almost surely, 2^981787452 is an apocalyptic number.

It is an amenable number.

981787452 is an abundant number, since it is smaller than the sum of its proper divisors (1370965524).

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

981787452 is a wasteful number, since it uses less digits than its factorization.

981787452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211277 (or 2211275 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 51.

The square root of 981787452 is about 31333.4877088396. The cubic root of 981787452 is about 993.8919179619.

The spelling of 981787452 in words is "nine hundred eighty-one million, seven hundred eighty-seven thousand, four hundred fifty-two".