11699897 has 4 divisors (see below), whose sum is σ = 12763536. Its totient is φ = 10636260.

The previous prime is 11699879. The next prime is 11699899. The reversal of 11699897 is 79899611.

11699897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11699897 - 2⁶ = 11699833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11699899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531803 + ... + 531824.

It is an arithmetic number, because the mean of its divisors is an integer number (3190884).

Almost surely, 2^11699897 is an apocalyptic number.

It is an amenable number.

11699897 is a deficient number, since it is larger than the sum of its proper divisors (1063639).

11699897 is a wasteful number, since it uses less digits than its factorization.

11699897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063638.

The product of its digits is 244944, while the sum is 50.

The square root of 11699897 is about 3420.5112191016. The cubic root of 11699897 is about 227.0182018823.

The spelling of 11699897 in words is "eleven million, six hundred ninety-nine thousand, eight hundred ninety-seven".