215073084 has 24 divisors (see below), whose sum is σ = 528250240. Its totient is φ = 67917744.

The previous prime is 215073083. The next prime is 215073097. The reversal of 215073084 is 480370512.

It is a super-2 number, since 2×215073084² = 92512862922542112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215073083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471424 + ... + 471879.

Almost surely, 2^215073084 is an apocalyptic number.

It is an amenable number.

215073084 is an abundant number, since it is smaller than the sum of its proper divisors (313177156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215073084 is a wasteful number, since it uses less digits than its factorization.

215073084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943329 (or 943327 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 215073084 is about 14665.3702305806. The cubic root of 215073084 is about 599.1405138382.

The spelling of 215073084 in words is "two hundred fifteen million, seventy-three thousand, eighty-four".