989754 has 16 divisors (see below), whose sum is σ = 1989792. Its totient is φ = 328208.

The previous prime is 989753. The next prime is 989761. The reversal of 989754 is 457989.

It is a super-2 number, since 2×989754² = 1959225961032, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989754.

It is not an unprimeable number, because it can be changed into a prime (989753) by changing a digit.

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, 1477 + ... + 2039.

It is an arithmetic number, because the mean of its divisors is an integer number (124362).

2⁹⁸⁹⁷⁵⁴ is an apocalyptic number.

989754 is an abundant number, since it is smaller than the sum of its proper divisors (1000038).

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

989754 is a wasteful number, since it uses less digits than its factorization.

989754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

The product of its digits is 90720, while the sum is 42.

The square root of 989754 is about 994.8638097750. The cubic root of 989754 is about 99.6572935311.

The spelling of 989754 in words is "nine hundred eighty-nine thousand, seven hundred fifty-four".