989654 has 16 divisors (see below), whose sum is σ = 1559520. Its totient is φ = 470400.

The previous prime is 989647. The next prime is 989663. The reversal of 989654 is 456989.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6479 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (97470).

2⁹⁸⁹⁶⁵⁴ is an apocalyptic number.

989654 is a deficient number, since it is larger than the sum of its proper divisors (569866).

989654 is a wasteful number, since it uses less digits than its factorization.

989654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295.

The product of its digits is 77760, while the sum is 41.

The square root of 989654 is about 994.8135503701. The cubic root of 989654 is about 99.6539371196.

The spelling of 989654 in words is "nine hundred eighty-nine thousand, six hundred fifty-four".