998560782 has 24 divisors (see below), whose sum is σ = 2164167720. Its totient is φ = 332758320.

The previous prime is 998560753. The next prime is 998560811. The reversal of 998560782 is 287065899.

It is a happy number.

998560782 is a `hidden beast` number, since 9 + 9 + 8 + 560 + 78 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (998560753) and next prime (998560811).

It is a congruent number.

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, 88057 + ... + 98747.

It is an arithmetic number, because the mean of its divisors is an integer number (90173655).

Almost surely, 2^998560782 is an apocalyptic number.

998560782 is an abundant number, since it is smaller than the sum of its proper divisors (1165606938).

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

998560782 is a wasteful number, since it uses less digits than its factorization.

998560782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15888 (or 15885 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 998560782 is about 31600.0123734153. The cubic root of 998560782 is about 999.5200303326.

The spelling of 998560782 in words is "nine hundred ninety-eight million, five hundred sixty thousand, seven hundred eighty-two".