215947008 has 108 divisors (see below), whose sum is σ = 655531240. Its totient is φ = 68179968.

The previous prime is 215947007. The next prime is 215947033. The reversal of 215947008 is 800749512.

It is a super-2 number, since 2×215947008² = 93266220528304128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215947007) 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 11 ways as a sum of consecutive naturals, for example, 41310 + ... + 46242.

Almost surely, 2^215947008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215947008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327765620).

215947008 is an abundant number, since it is smaller than the sum of its proper divisors (439584232).

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

215947008 is a wasteful number, since it uses less digits than its factorization.

215947008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974 (or 4957 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 215947008 is about 14695.1355216616. The cubic root of 215947008 is about 599.9509293202.

The spelling of 215947008 in words is "two hundred fifteen million, nine hundred forty-seven thousand, eight".