11958817 has 8 divisors (see below), whose sum is σ = 13323240. Its totient is φ = 10657920.

The previous prime is 11958767. The next prime is 11958829. The reversal of 11958817 is 71885911.

11958817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 118336 + 11840481 = 344^2 + 3441^2 .

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

It is not a de Polignac number, because 11958817 - 2¹⁹ = 11434529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11958817.

It is not an unprimeable number, because it can be changed into a prime (11958857) 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, 15484 + ... + 16237.

It is an arithmetic number, because the mean of its divisors is an integer number (1665405).

Almost surely, 2^11958817 is an apocalyptic number.

It is an amenable number.

11958817 is a deficient number, since it is larger than the sum of its proper divisors (1364423).

11958817 is a wasteful number, since it uses less digits than its factorization.

11958817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31763.

The product of its digits is 20160, while the sum is 40.

The square root of 11958817 is about 3458.1522522873. The cubic root of 11958817 is about 228.6806440677.

The spelling of 11958817 in words is "eleven million, nine hundred fifty-eight thousand, eight hundred seventeen".