973689 has 8 divisors (see below), whose sum is σ = 1302912. Its totient is φ = 646800.

The previous prime is 973681. The next prime is 973691. The reversal of 973689 is 986379.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 973689 - 2³ = 973681 is a prime.

It is an Ulam number.

973689 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 973689.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 973689.

It is not an unprimeable number, because it can be changed into a prime (973681) 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, 1039 + ... + 1739.

It is an arithmetic number, because the mean of its divisors is an integer number (162864).

2⁹⁷³⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

973689 is a deficient number, since it is larger than the sum of its proper divisors (329223).

973689 is a wasteful number, since it uses less digits than its factorization.

973689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167.

The product of its digits is 81648, while the sum is 42.

The square root of 973689 is about 986.7568089453. The cubic root of 973689 is about 99.1151603471.

The spelling of 973689 in words is "nine hundred seventy-three thousand, six hundred eighty-nine".