11699421 has 8 divisors (see below), whose sum is σ = 16420320. Its totient is φ = 7389072.

The previous prime is 11699419. The next prime is 11699423. The reversal of 11699421 is 12499611.

11699421 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11699419) and next prime (11699423).

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

It is not a de Polignac number, because 11699421 - 2¹ = 11699419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11699423) 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, 102570 + ... + 102683.

It is an arithmetic number, because the mean of its divisors is an integer number (2052540).

Almost surely, 2^11699421 is an apocalyptic number.

It is an amenable number.

11699421 is a deficient number, since it is larger than the sum of its proper divisors (4720899).

11699421 is a wasteful number, since it uses less digits than its factorization.

11699421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205275.

The product of its digits is 3888, while the sum is 33.

The square root of 11699421 is about 3420.4416381514. The cubic root of 11699421 is about 227.0151231620.

The spelling of 11699421 in words is "eleven million, six hundred ninety-nine thousand, four hundred twenty-one".