1162989 has 6 divisors (see below), whose sum is σ = 1679886. Its totient is φ = 775320.

The previous prime is 1162981. The next prime is 1162991. The reversal of 1162989 is 9892611.

It can be written as a sum of positive squares in only one way, i.e., 887364 + 275625 = 942^2 + 525^2 .

It is not a de Polignac number, because 1162989 - 2³ = 1162981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64602 + ... + 64619.

It is an arithmetic number, because the mean of its divisors is an integer number (279981).

2^1162989 is an apocalyptic number.

It is an amenable number.

1162989 is a deficient number, since it is larger than the sum of its proper divisors (516897).

1162989 is a wasteful number, since it uses less digits than its factorization.

1162989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129227 (or 129224 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 1162989 is about 1078.4196771202. The cubic root of 1162989 is about 105.1619270247.

The spelling of 1162989 in words is "one million, one hundred sixty-two thousand, nine hundred eighty-nine".