213623867 has 8 divisors (see below), whose sum is σ = 217883520. Its totient is φ = 209372800.

The previous prime is 213623863. The next prime is 213623869. The reversal of 213623867 is 768326312.

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

It is a cyclic number.

It is not a de Polignac number, because 213623867 - 2² = 213623863 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 213623867.

It is not an unprimeable number, because it can be changed into a prime (213623863) 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, 74867 + ... + 77667.

It is an arithmetic number, because the mean of its divisors is an integer number (27235440).

Almost surely, 2^213623867 is an apocalyptic number.

213623867 is a deficient number, since it is larger than the sum of its proper divisors (4259653).

213623867 is a wasteful number, since it uses less digits than its factorization.

213623867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293.

The product of its digits is 72576, while the sum is 38.

The square root of 213623867 is about 14615.8772230749. The cubic root of 213623867 is about 597.7917596130.

The spelling of 213623867 in words is "two hundred thirteen million, six hundred twenty-three thousand, eight hundred sixty-seven".