830761 has 4 divisors (see below), whose sum is σ = 853252. Its totient is φ = 808272.

The previous prime is 830743. The next prime is 830777. The reversal of 830761 is 167038.

830761 = 644² + 645².

830761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 416025 + 414736 = 645^2 + 644^2 .

It is a cyclic number.

It is not a de Polignac number, because 830761 - 2⁵ = 830729 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830741) 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, 11190 + ... + 11263.

It is an arithmetic number, because the mean of its divisors is an integer number (213313).

2⁸³⁰⁷⁶¹ is an apocalyptic number.

830761 is the 645-th centered square number.

It is an amenable number.

830761 is a deficient number, since it is larger than the sum of its proper divisors (22491).

830761 is a wasteful number, since it uses less digits than its factorization.

830761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22490.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 830761 is about 911.4609152344. The cubic root of 830761 is about 94.0066767553.

Adding to 830761 its reverse (167038), we get a palindrome (997799).

The spelling of 830761 in words is "eight hundred thirty thousand, seven hundred sixty-one".