11867491 has 8 divisors (see below), whose sum is σ = 12487104. Its totient is φ = 11263680.

The previous prime is 11867447. The next prime is 11867501. The reversal of 11867491 is 19476811.

11867491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11867491 - 2¹⁵ = 11834723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11867491.

It is not an unprimeable number, because it can be changed into a prime (11867431) 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, 2395 + ... + 5428.

It is an arithmetic number, because the mean of its divisors is an integer number (1560888).

Almost surely, 2^11867491 is an apocalyptic number.

11867491 is a deficient number, since it is larger than the sum of its proper divisors (619613).

11867491 is an equidigital number, since it uses as much as digits as its factorization.

11867491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7901.

The product of its digits is 12096, while the sum is 37.

The square root of 11867491 is about 3444.9224954997. The cubic root of 11867491 is about 228.0970334391.

The spelling of 11867491 in words is "eleven million, eight hundred sixty-seven thousand, four hundred ninety-one".