11521693 has 8 divisors (see below), whose sum is σ = 11681280. Its totient is φ = 11363520.

The previous prime is 11521691. The next prime is 11521703. The reversal of 11521693 is 39612511.

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

It is a cyclic number.

It is not a de Polignac number, because 11521693 - 2¹ = 11521691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11521691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34021 + ... + 34357.

It is an arithmetic number, because the mean of its divisors is an integer number (1460160).

Almost surely, 2^11521693 is an apocalyptic number.

It is an amenable number.

11521693 is a deficient number, since it is larger than the sum of its proper divisors (159587).

11521693 is a wasteful number, since it uses less digits than its factorization.

11521693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707.

The product of its digits is 1620, while the sum is 28.

The square root of 11521693 is about 3394.3619429872. The cubic root of 11521693 is about 225.8597100978.

The spelling of 11521693 in words is "eleven million, five hundred twenty-one thousand, six hundred ninety-three".