816734 has 8 divisors (see below), whose sum is σ = 1289640. Its totient is φ = 386856.

The previous prime is 816709. The next prime is 816743. The reversal of 816734 is 437618.

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

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 816697 and 816706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10709 + ... + 10784.

It is an arithmetic number, because the mean of its divisors is an integer number (161205).

2⁸¹⁶⁷³⁴ is an apocalyptic number.

816734 is a deficient number, since it is larger than the sum of its proper divisors (472906).

816734 is a wasteful number, since it uses less digits than its factorization.

816734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21514.

The product of its digits is 4032, while the sum is 29.

The square root of 816734 is about 903.7333677584. The cubic root of 816734 is about 93.4745848736.

The spelling of 816734 in words is "eight hundred sixteen thousand, seven hundred thirty-four".