730986 has 16 divisors (see below), whose sum is σ = 1525824. Its totient is φ = 233024.

The previous prime is 730973. The next prime is 730993. The reversal of 730986 is 689037.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2511 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (95364).

2⁷³⁰⁹⁸⁶ is an apocalyptic number.

730986 is an abundant number, since it is smaller than the sum of its proper divisors (794838).

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

730986 is a wasteful number, since it uses less digits than its factorization.

730986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 730986 is about 854.9771926783. The cubic root of 730986 is about 90.0816542902.

The spelling of 730986 in words is "seven hundred thirty thousand, nine hundred eighty-six".