11721474 has 12 divisors (see below), whose sum is σ = 25396566. Its totient is φ = 3907152.

The previous prime is 11721473. The next prime is 11721491. The reversal of 11721474 is 47412711.

It can be written as a sum of positive squares in only one way, i.e., 11594025 + 127449 = 3405^2 + 357^2 .

It is not an unprimeable number, because it can be changed into a prime (11721473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325579 + ... + 325614.

Almost surely, 2^11721474 is an apocalyptic number.

11721474 is an abundant number, since it is smaller than the sum of its proper divisors (13675092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11721474 is a wasteful number, since it uses less digits than its factorization.

11721474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651201 (or 651198 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 11721474 is about 3423.6638269550. The cubic root of 11721474 is about 227.1576721592.

The spelling of 11721474 in words is "eleven million, seven hundred twenty-one thousand, four hundred seventy-four".