11602989 has 12 divisors (see below), whose sum is σ = 16789500. Its totient is φ = 7721664.

The previous prime is 11602979. The next prime is 11603003. The reversal of 11602989 is 98920611.

It can be written as a sum of positive squares in 2 ways, for example, as 11088900 + 514089 = 3330^2 + 717^2 .

It is not a de Polignac number, because 11602989 - 2⁵ = 11602957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11602949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8827 + ... + 10055.

It is an arithmetic number, because the mean of its divisors is an integer number (1399125).

Almost surely, 2^11602989 is an apocalyptic number.

It is an amenable number.

11602989 is a deficient number, since it is larger than the sum of its proper divisors (5186511).

11602989 is a wasteful number, since it uses less digits than its factorization.

11602989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2281 counting only the distinct ones).

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

The square root of 11602989 is about 3406.3160452313. The cubic root of 11602989 is about 226.3896806448.

The spelling of 11602989 in words is "eleven million, six hundred two thousand, nine hundred eighty-nine".