215928005 has 8 divisors (see below), whose sum is σ = 259245600. Its totient is φ = 172654416.

The previous prime is 215927981. The next prime is 215928073. The reversal of 215928005 is 500829512.

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 215928005 - 2¹⁰ = 215926981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986 + ... + 20804.

It is an arithmetic number, because the mean of its divisors is an integer number (32405700).

Almost surely, 2^215928005 is an apocalyptic number.

It is an amenable number.

215928005 is a deficient number, since it is larger than the sum of its proper divisors (43317595).

215928005 is a wasteful number, since it uses less digits than its factorization.

215928005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22003.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 215928005 is about 14694.4889329299. The cubic root of 215928005 is about 599.9333305552.

The spelling of 215928005 in words is "two hundred fifteen million, nine hundred twenty-eight thousand, five".