216097371 has 12 divisors (see below), whose sum is σ = 356732272. Its totient is φ = 123484176.

The previous prime is 216097337. The next prime is 216097381. The reversal of 216097371 is 173790612.

It is a happy number.

216097371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216097371 - 2⁷ = 216097243 is a prime.

It is a super-2 number, since 2×216097371² = 93396147506223282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216097331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1714996 + ... + 1715121.

Almost surely, 2^216097371 is an apocalyptic number.

216097371 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

216097371 is a deficient number, since it is larger than the sum of its proper divisors (140634901).

216097371 is a wasteful number, since it uses less digits than its factorization.

216097371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430130 (or 3430127 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 216097371 is about 14700.2507121477. The cubic root of 216097371 is about 600.0901447892.

The spelling of 216097371 in words is "two hundred sixteen million, ninety-seven thousand, three hundred seventy-one".