11859489 has 12 divisors (see below), whose sum is σ = 18138276. Its totient is φ = 7441152.

The previous prime is 11859487. The next prime is 11859503. The reversal of 11859489 is 98495811.

11859489 is a `hidden beast` number, since 118 + 59 + 489 = 666.

11859489 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10497600 + 1361889 = 3240^2 + 1167^2 .

It is not a de Polignac number, because 11859489 - 2¹ = 11859487 is a prime.

It is a super-2 number, since 2×11859489² = 281294958682242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11859481) 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, 38604 + ... + 38909.

It is an arithmetic number, because the mean of its divisors is an integer number (1511523).

Almost surely, 2^11859489 is an apocalyptic number.

It is an amenable number.

11859489 is a deficient number, since it is larger than the sum of its proper divisors (6278787).

11859489 is a wasteful number, since it uses less digits than its factorization.

11859489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77536 (or 77533 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 11859489 is about 3443.7608802006. The cubic root of 11859489 is about 228.0457548986.

The spelling of 11859489 in words is "eleven million, eight hundred fifty-nine thousand, four hundred eighty-nine".