11858389 has 8 divisors (see below), whose sum is σ = 12477528. Its totient is φ = 11255040.

The previous prime is 11858387. The next prime is 11858423. The reversal of 11858389 is 98385811.

It can be written as a sum of positive squares in 4 ways, for example, as 11025 + 11847364 = 105^2 + 3442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11858389 - 2¹ = 11858387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11858381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392 + ... + 5425.

It is an arithmetic number, because the mean of its divisors is an integer number (1559691).

Almost surely, 2^11858389 is an apocalyptic number.

It is an amenable number.

11858389 is a deficient number, since it is larger than the sum of its proper divisors (619139).

11858389 is an equidigital number, since it uses as much as digits as its factorization.

11858389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895.

The product of its digits is 69120, while the sum is 43.

The square root of 11858389 is about 3443.6011673828. The cubic root of 11858389 is about 228.0387040583.

The spelling of 11858389 in words is "eleven million, eight hundred fifty-eight thousand, three hundred eighty-nine".