80834261 has 4 divisors (see below), whose sum is σ = 80867724. Its totient is φ = 80800800.

The previous prime is 80834249. The next prime is 80834263. The reversal of 80834261 is 16243808.

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 65772100 + 15062161 = 8110^2 + 3881^2 .

It is a cyclic number.

It is not a de Polignac number, because 80834261 - 2⁶ = 80834197 is a prime.

It is a super-2 number, since 2×80834261² = 13068355502832242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80834263) 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, 12800 + ... + 18041.

It is an arithmetic number, because the mean of its divisors is an integer number (20216931).

Almost surely, 2^80834261 is an apocalyptic number.

It is an amenable number.

80834261 is a deficient number, since it is larger than the sum of its proper divisors (33463).

80834261 is a wasteful number, since it uses less digits than its factorization.

80834261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33462.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 80834261 is about 8990.7875628334. The cubic root of 80834261 is about 432.3795621748.

The spelling of 80834261 in words is "eighty million, eight hundred thirty-four thousand, two hundred sixty-one".