11749491 has 24 divisors (see below), whose sum is σ = 18398016. Its totient is φ = 7182720.

The previous prime is 11749489. The next prime is 11749501. The reversal of 11749491 is 19494711.

11749491 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11749491 - 2¹ = 11749489 is a prime.

It is a super-3 number, since 3×11749491³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11749421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27046 + ... + 27476.

It is an arithmetic number, because the mean of its divisors is an integer number (766584).

Almost surely, 2^11749491 is an apocalyptic number.

11749491 is a deficient number, since it is larger than the sum of its proper divisors (6648525).

11749491 is a wasteful number, since it uses less digits than its factorization.

11749491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 680 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 11749491 is about 3427.7530541158. The cubic root of 11749491 is about 227.3385143904.

The spelling of 11749491 in words is "eleven million, seven hundred forty-nine thousand, four hundred ninety-one".