986391252 has 72 divisors (see below), whose sum is σ = 3108635712. Its totient is φ = 256204800.

The previous prime is 986391229. The next prime is 986391253. The reversal of 986391252 is 252193689.

986391252 is a `hidden beast` number, since 9 + 8 + 6 + 391 + 252 = 666.

986391252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 986391198 and 986391207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986391253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175149 + ... + 180692.

It is an arithmetic number, because the mean of its divisors is an integer number (43175496).

Almost surely, 2^986391252 is an apocalyptic number.

It is an amenable number.

986391252 is an abundant number, since it is smaller than the sum of its proper divisors (2122244460).

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

986391252 is a wasteful number, since it uses less digits than its factorization.

986391252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355869 (or 355864 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 986391252 is about 31406.8663193258. The cubic root of 986391252 is about 995.4430161081.

The spelling of 986391252 in words is "nine hundred eighty-six million, three hundred ninety-one thousand, two hundred fifty-two".