80774 has 4 divisors (see below), whose sum is σ = 121164. Its totient is φ = 40386.
The previous prime is 80761. The next prime is 80777. The reversal of 80774 is 47708.
It is a semiprime because it is the product of two primes.
It is an Ulam number.
It is a plaindrome in base 15.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80777) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20192 + ... + 20195.
It is an arithmetic number, because the mean of its divisors is an integer number (30291).
280774 is an apocalyptic number.
80774 is a deficient number, since it is larger than the sum of its proper divisors (40390).
80774 is a wasteful number, since it uses less digits than its factorization.
80774 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40389.
The product of its (nonzero) digits is 1568, while the sum is 26.
The square root of 80774 is about 284.2076705510. The cubic root of 80774 is about 43.2272090822.
The spelling of 80774 in words is "eighty thousand, seven hundred seventy-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.091 sec. • engine limits •