11217867 has 8 divisors (see below), whose sum is σ = 15473040. Its totient is φ = 7220640.

The previous prime is 11217853. The next prime is 11217881. The reversal of 11217867 is 76871211.

It is an interprime number because it is at equal distance from previous prime (11217853) and next prime (11217881).

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

It is not a de Polignac number, because 11217867 - 2¹² = 11213771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11217667) 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, 64384 + ... + 64557.

It is an arithmetic number, because the mean of its divisors is an integer number (1934130).

Almost surely, 2^11217867 is an apocalyptic number.

11217867 is a deficient number, since it is larger than the sum of its proper divisors (4255173).

11217867 is a wasteful number, since it uses less digits than its factorization.

11217867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128973.

The product of its digits is 4704, while the sum is 33.

The square root of 11217867 is about 3349.3084360805. The cubic root of 11217867 is about 223.8566991080.

The spelling of 11217867 in words is "eleven million, two hundred seventeen thousand, eight hundred sixty-seven".