989494 has 16 divisors (see below), whose sum is σ = 1660176. Its totient is φ = 438400.

The previous prime is 989479. The next prime is 989507. The reversal of 989494 is 494989.

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

It is a self number, because there is not a number n which added to its sum of digits gives 989494.

It is a congruent 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, 354 + ... + 1450.

It is an arithmetic number, because the mean of its divisors is an integer number (103761).

2⁹⁸⁹⁴⁹⁴ is an apocalyptic number.

989494 is a deficient number, since it is larger than the sum of its proper divisors (670682).

989494 is a wasteful number, since it uses less digits than its factorization.

989494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151.

The product of its digits is 93312, while the sum is 43.

The square root of 989494 is about 994.7331300404. The cubic root of 989494 is about 99.6485663910.

It can be divided in two parts, 989 and 494, that multiplied together give a triangular number (488566 = T₉₈₈).

The spelling of 989494 in words is "nine hundred eighty-nine thousand, four hundred ninety-four".