80372794 has 4 divisors (see below), whose sum is σ = 120559194. Its totient is φ = 40186396.

The previous prime is 80372779. The next prime is 80372797. The reversal of 80372794 is 49727308.

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., 79441569 + 931225 = 8913^2 + 965^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (80372797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20093197 + ... + 20093200.

Almost surely, 2^80372794 is an apocalyptic number.

80372794 is a deficient number, since it is larger than the sum of its proper divisors (40186400).

80372794 is a wasteful number, since it uses less digits than its factorization.

80372794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40186399.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 80372794 is about 8965.0875065445. The cubic root of 80372794 is about 431.5552013313. Note that the first 3 decimals are identical.

The spelling of 80372794 in words is "eighty million, three hundred seventy-two thousand, seven hundred ninety-four".