11869491 has 8 divisors (see below), whose sum is σ = 15892624. Its totient is φ = 7879680.

The previous prime is 11869463. The next prime is 11869493. The reversal of 11869491 is 19496811.

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

It is not a de Polignac number, because 11869491 - 2¹³ = 11861299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11869493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7486 + ... + 8931.

It is an arithmetic number, because the mean of its divisors is an integer number (1986578).

Almost surely, 2^11869491 is an apocalyptic number.

11869491 is a deficient number, since it is larger than the sum of its proper divisors (4023133).

11869491 is a wasteful number, since it uses less digits than its factorization.

11869491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16661.

The product of its digits is 15552, while the sum is 39.

The square root of 11869491 is about 3445.2127655633. The cubic root of 11869491 is about 228.1098462693.

The spelling of 11869491 in words is "eleven million, eight hundred sixty-nine thousand, four hundred ninety-one".