970989 has 16 divisors (see below), whose sum is σ = 1393920. Its totient is φ = 599040.

The previous prime is 970987. The next prime is 970997. The reversal of 970989 is 989079.

It is a happy number.

It is not a de Polignac number, because 970989 - 2¹ = 970987 is a prime.

It is an Ulam number.

970989 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 970989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3909 + ... + 4149.

It is an arithmetic number, because the mean of its divisors is an integer number (87120).

2⁹⁷⁰⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

970989 is a deficient number, since it is larger than the sum of its proper divisors (422931).

970989 is a wasteful number, since it uses less digits than its factorization.

970989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 970989 is about 985.3877409426. The cubic root of 970989 is about 99.0234614327.

The spelling of 970989 in words is "nine hundred seventy thousand, nine hundred eighty-nine".