216395337 has 4 divisors (see below), whose sum is σ = 288527120. Its totient is φ = 144263556.

The previous prime is 216395323. The next prime is 216395341. The reversal of 216395337 is 733593612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 216395337 - 2⁷ = 216395209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216395295 and 216395304.

It is not an unprimeable number, because it can be changed into a prime (216395357) 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, 36065887 + ... + 36065892.

It is an arithmetic number, because the mean of its divisors is an integer number (72131780).

Almost surely, 2^216395337 is an apocalyptic number.

It is an amenable number.

216395337 is a deficient number, since it is larger than the sum of its proper divisors (72131783).

216395337 is an equidigital number, since it uses as much as digits as its factorization.

216395337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72131782.

The product of its digits is 102060, while the sum is 39.

The square root of 216395337 is about 14710.3819460951. The cubic root of 216395337 is about 600.3658296802.

The spelling of 216395337 in words is "two hundred sixteen million, three hundred ninety-five thousand, three hundred thirty-seven".