215327047 has 4 divisors (see below), whose sum is σ = 231890680. Its totient is φ = 198763416.

The previous prime is 215327029. The next prime is 215327093. The reversal of 215327047 is 740723512.

215327047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 215327047 - 2⁷ = 215326919 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 (215327017) 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, 8281797 + ... + 8281822.

It is an arithmetic number, because the mean of its divisors is an integer number (57972670).

Almost surely, 2^215327047 is an apocalyptic number.

215327047 is a deficient number, since it is larger than the sum of its proper divisors (16563633).

215327047 is a wasteful number, since it uses less digits than its factorization.

215327047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16563632.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 215327047 is about 14674.0262709319. The cubic root of 215327047 is about 599.3762471490.

The spelling of 215327047 in words is "two hundred fifteen million, three hundred twenty-seven thousand, forty-seven".