993686130 has 80 divisors (see below), whose sum is σ = 2812582080. Its totient is φ = 251032608.

The previous prime is 993686117. The next prime is 993686191. The reversal of 993686130 is 31686399.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16894 + ... + 47673.

It is an arithmetic number, because the mean of its divisors is an integer number (35157276).

Almost surely, 2^993686130 is an apocalyptic number.

993686130 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

993686130 is an abundant number, since it is smaller than the sum of its proper divisors (1818895950).

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

993686130 is a wasteful number, since it uses less digits than its factorization.

993686130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64605 (or 64596 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 993686130 is about 31522.7874719226. The cubic root of 993686130 is about 997.8909316244.

The spelling of 993686130 in words is "nine hundred ninety-three million, six hundred eighty-six thousand, one hundred thirty".