816607 has 8 divisors (see below), whose sum is σ = 906192. Its totient is φ = 729600.

The previous prime is 816593. The next prime is 816649. The reversal of 816607 is 706618.

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

It is a cyclic number.

It is not a de Polignac number, because 816607 - 2¹¹ = 814559 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816667) 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, 63 + ... + 1279.

It is an arithmetic number, because the mean of its divisors is an integer number (113274).

2⁸¹⁶⁶⁰⁷ is an apocalyptic number.

816607 is a deficient number, since it is larger than the sum of its proper divisors (89585).

816607 is a wasteful number, since it uses less digits than its factorization.

816607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 816607 is about 903.6631009397. The cubic root of 816607 is about 93.4697396046.

The spelling of 816607 in words is "eight hundred sixteen thousand, six hundred seven".