80810474 has 4 divisors (see below), whose sum is σ = 121215714. Its totient is φ = 40405236.

The previous prime is 80810461. The next prime is 80810497. The reversal of 80810474 is 47401808.

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., 80013025 + 797449 = 8945^2 + 893^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80810474.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20202617 + ... + 20202620.

Almost surely, 2^80810474 is an apocalyptic number.

80810474 is a deficient number, since it is larger than the sum of its proper divisors (40405240).

80810474 is a wasteful number, since it uses less digits than its factorization.

80810474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40405239.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 80810474 is about 8989.4646114215. The cubic root of 80810474 is about 432.3371460774.

The spelling of 80810474 in words is "eighty million, eight hundred ten thousand, four hundred seventy-four".