80667801 has 12 divisors (see below), whose sum is σ = 116609428. Its totient is φ = 53737344.

The previous prime is 80667793. The next prime is 80667823. The reversal of 80667801 is 10876608.

It can be written as a sum of positive squares in 2 ways, for example, as 1440000 + 79227801 = 1200^2 + 8901^2 .

It is not a de Polignac number, because 80667801 - 2³ = 80667793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80666801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13221 + ... + 18333.

Almost surely, 2^80667801 is an apocalyptic number.

It is an amenable number.

80667801 is a deficient number, since it is larger than the sum of its proper divisors (35941627).

80667801 is a wasteful number, since it uses less digits than its factorization.

80667801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6872 (or 6869 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 80667801 is about 8981.5255385708. The cubic root of 80667801 is about 432.0825620236.

The spelling of 80667801 in words is "eighty million, six hundred sixty-seven thousand, eight hundred one".