11894691 has 4 divisors (see below), whose sum is σ = 15859592. Its totient is φ = 7929792.

The previous prime is 11894689. The next prime is 11894759. The reversal of 11894691 is 19649811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19649811 = 3 ⋅6549937.

It is not a de Polignac number, because 11894691 - 2¹ = 11894689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11894651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1982446 + ... + 1982451.

It is an arithmetic number, because the mean of its divisors is an integer number (3964898).

Almost surely, 2^11894691 is an apocalyptic number.

11894691 is a deficient number, since it is larger than the sum of its proper divisors (3964901).

11894691 is an equidigital number, since it uses as much as digits as its factorization.

11894691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964900.

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

The square root of 11894691 is about 3448.8680751806. The cubic root of 11894691 is about 228.2711647515.

The spelling of 11894691 in words is "eleven million, eight hundred ninety-four thousand, six hundred ninety-one".