11942691 has 12 divisors (see below), whose sum is σ = 16310088. Its totient is φ = 7773024.

The previous prime is 11942639. The next prime is 11942713. The reversal of 11942691 is 19624911.

It is not a de Polignac number, because 11942691 - 2¹³ = 11934499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11942291) 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 11 ways as a sum of consecutive naturals, for example, 4471 + ... + 6623.

It is an arithmetic number, because the mean of its divisors is an integer number (1359174).

Almost surely, 2^11942691 is an apocalyptic number.

11942691 is a deficient number, since it is larger than the sum of its proper divisors (4367397).

11942691 is an equidigital number, since it uses as much as digits as its factorization.

11942691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242 (or 2199 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 11942691 is about 3455.8198737781. The cubic root of 11942691 is about 228.5778088435.

The spelling of 11942691 in words is "eleven million, nine hundred forty-two thousand, six hundred ninety-one".