11497749 has 8 divisors (see below), whose sum is σ = 15351552. Its totient is φ = 7654560.

The previous prime is 11497721. The next prime is 11497757. The reversal of 11497749 is 94779411.

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

It is a de Polignac number, because none of the positive numbers 2^k-11497749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11497749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11497709) 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, 369 + ... + 4809.

It is an arithmetic number, because the mean of its divisors is an integer number (1918944).

Almost surely, 2^11497749 is an apocalyptic number.

It is an amenable number.

11497749 is a deficient number, since it is larger than the sum of its proper divisors (3853803).

11497749 is an equidigital number, since it uses as much as digits as its factorization.

11497749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5307.

The product of its digits is 63504, while the sum is 42.

The square root of 11497749 is about 3390.8330834767. The cubic root of 11497749 is about 225.7031435394.

It can be divided in two parts, 11497 and 749, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 11497749 in words is "eleven million, four hundred ninety-seven thousand, seven hundred forty-nine".