80529874 has 4 divisors (see below), whose sum is σ = 120794814. Its totient is φ = 40264936.

The previous prime is 80529859. The next prime is 80529893. The reversal of 80529874 is 47892508.

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

It can be written as a sum of positive squares in only one way, i.e., 60949249 + 19580625 = 7807^2 + 4425^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80529874.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20132467 + ... + 20132470.

Almost surely, 2^80529874 is an apocalyptic number.

80529874 is a deficient number, since it is larger than the sum of its proper divisors (40264940).

80529874 is a wasteful number, since it uses less digits than its factorization.

80529874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40264939.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 80529874 is about 8973.8438809687. The cubic root of 80529874 is about 431.8361611505.

The spelling of 80529874 in words is "eighty million, five hundred twenty-nine thousand, eight hundred seventy-four".