11521772 has 6 divisors (see below), whose sum is σ = 20163108. Its totient is φ = 5760884.

The previous prime is 11521751. The next prime is 11521793. The reversal of 11521772 is 27712511.

It is an interprime number because it is at equal distance from previous prime (11521751) and next prime (11521793).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1440218 + ... + 1440225.

It is an arithmetic number, because the mean of its divisors is an integer number (3360518).

Almost surely, 2^11521772 is an apocalyptic number.

It is an amenable number.

11521772 is a deficient number, since it is larger than the sum of its proper divisors (8641336).

11521772 is a wasteful number, since it uses less digits than its factorization.

11521772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880447 (or 2880445 counting only the distinct ones).

The product of its digits is 980, while the sum is 26.

The square root of 11521772 is about 3394.3735799113. The cubic root of 11521772 is about 225.8602263089.

The spelling of 11521772 in words is "eleven million, five hundred twenty-one thousand, seven hundred seventy-two".