80356 has 6 divisors (see below), whose sum is σ = 140630. Its totient is φ = 40176.

The previous prime is 80347. The next prime is 80363. The reversal of 80356 is 65308.

80356 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in only one way, i.e., 54756 + 25600 = 234^2 + 160^2 .

It is a d-powerful number, because it can be written as 8 + 0 + 3⁷ + 5⁷ + 6² .

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041 + ... + 10048.

2⁸⁰³⁵⁶ is an apocalyptic number.

It is an amenable number.

80356 is a deficient number, since it is larger than the sum of its proper divisors (60274).

80356 is a wasteful number, since it uses less digits than its factorization.

80356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20093 (or 20091 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 80356 is about 283.4713389392. The cubic root of 80356 is about 43.1525141230.

The spelling of 80356 in words is "eighty thousand, three hundred fifty-six".