11958967 has 4 divisors (see below), whose sum is σ = 11970040. Its totient is φ = 11947896.

The previous prime is 11958953. The next prime is 11958977. The reversal of 11958967 is 76985911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 76985911 = 17 ⋅4528583.

It is a cyclic number.

It is not a de Polignac number, because 11958967 - 2¹⁵ = 11926199 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 (11958907) 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, 3717 + ... + 6142.

It is an arithmetic number, because the mean of its divisors is an integer number (2992510).

Almost surely, 2^11958967 is an apocalyptic number.

11958967 is a deficient number, since it is larger than the sum of its proper divisors (11073).

11958967 is an equidigital number, since it uses as much as digits as its factorization.

11958967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11072.

The product of its digits is 136080, while the sum is 46.

The square root of 11958967 is about 3458.1739401019. The cubic root of 11958967 is about 228.6816001811.

The spelling of 11958967 in words is "eleven million, nine hundred fifty-eight thousand, nine hundred sixty-seven".