11738391 has 24 divisors (see below), whose sum is σ = 18604800. Its totient is φ = 6561072.

The previous prime is 11738383. The next prime is 11738399. The reversal of 11738391 is 19383711.

It is an interprime number because it is at equal distance from previous prime (11738383) and next prime (11738399).

It is not a de Polignac number, because 11738391 - 2³ = 11738383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11738399) 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 23 ways as a sum of consecutive naturals, for example, 6060 + ... + 7758.

It is an arithmetic number, because the mean of its divisors is an integer number (775200).

Almost surely, 2^11738391 is an apocalyptic number.

11738391 is a deficient number, since it is larger than the sum of its proper divisors (6866409).

11738391 is a wasteful number, since it uses less digits than its factorization.

11738391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763 (or 1756 counting only the distinct ones).

The product of its digits is 4536, while the sum is 33.

The square root of 11738391 is about 3426.1335350508. The cubic root of 11738391 is about 227.2669012858.

The spelling of 11738391 in words is "eleven million, seven hundred thirty-eight thousand, three hundred ninety-one".