989954 has 16 divisors (see below), whose sum is σ = 1752576. Its totient is φ = 410400.

The previous prime is 989951. The next prime is 989959. The reversal of 989954 is 459989.

It is not an unprimeable number, because it can be changed into a prime (989951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707 + ... + 1574.

It is an arithmetic number, because the mean of its divisors is an integer number (109536).

2⁹⁸⁹⁹⁵⁴ is an apocalyptic number.

989954 is a deficient number, since it is larger than the sum of its proper divisors (762622).

989954 is a wasteful number, since it uses less digits than its factorization.

989954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321.

The product of its digits is 116640, while the sum is 44.

The square root of 989954 is about 994.9643209683. The cubic root of 989954 is about 99.6640056758.

The spelling of 989954 in words is "nine hundred eighty-nine thousand, nine hundred fifty-four".