989690 has 32 divisors (see below), whose sum is σ = 2007936. Its totient is φ = 348480.

The previous prime is 989687. The next prime is 989719. The reversal of 989690 is 96989.

It is a super-2 number, since 2×989690² = 1958972592200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2825 + ... + 3155.

It is an arithmetic number, because the mean of its divisors is an integer number (62748).

2⁹⁸⁹⁶⁹⁰ is an apocalyptic number.

989690 is an abundant number, since it is smaller than the sum of its proper divisors (1018246).

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

989690 is a wasteful number, since it uses less digits than its factorization.

989690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 989690 is about 994.8316440484. The cubic root of 989690 is about 99.6551454538.

The spelling of 989690 in words is "nine hundred eighty-nine thousand, six hundred ninety".