940889 has 2 divisors, whose sum is σ = 940890. Its totient is φ = 940888.

The previous prime is 940879. The next prime is 940903. The reversal of 940889 is 988049.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 855625 + 85264 = 925^2 + 292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940889 is a prime.

It is a super-2 number, since 2×940889² = 1770544220642, 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 940889.

It is not a weakly prime, because it can be changed into another prime (940829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470444 + 470445.

It is an arithmetic number, because the mean of its divisors is an integer number (470445).

2⁹⁴⁰⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

940889 is a deficient number, since it is larger than the sum of its proper divisors (1).

940889 is an equidigital number, since it uses as much as digits as its factorization.

940889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 940889 is about 969.9943298803. The cubic root of 940889 is about 97.9894824198.

The spelling of 940889 in words is "nine hundred forty thousand, eight hundred eighty-nine".