816330237 has 8 divisors (see below), whose sum is σ = 1135763904. Its totient is φ = 520558368.

The previous prime is 816330233. The next prime is 816330247. The reversal of 816330237 is 732033618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 816330237 - 2² = 816330233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 816330198 and 816330207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816330233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5915368 + ... + 5915505.

It is an arithmetic number, because the mean of its divisors is an integer number (141970488).

Almost surely, 2^816330237 is an apocalyptic number.

It is an amenable number.

816330237 is a deficient number, since it is larger than the sum of its proper divisors (319433667).

816330237 is a wasteful number, since it uses less digits than its factorization.

816330237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11830899.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 816330237 is about 28571.4934331407. The cubic root of 816330237 is about 934.5917887855.

The spelling of 816330237 in words is "eight hundred sixteen million, three hundred thirty thousand, two hundred thirty-seven".