80812427 has 4 divisors (see below), whose sum is σ = 80838576. Its totient is φ = 80786280.

The previous prime is 80812421. The next prime is 80812429. The reversal of 80812427 is 72421808.

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

It is a cyclic number.

It is not a de Polignac number, because 80812427 - 2¹⁶ = 80746891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80812393 and 80812402.

It is not an unprimeable number, because it can be changed into a prime (80812421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7703 + ... + 14864.

It is an arithmetic number, because the mean of its divisors is an integer number (20209644).

Almost surely, 2^80812427 is an apocalyptic number.

80812427 is a deficient number, since it is larger than the sum of its proper divisors (26149).

80812427 is a wasteful number, since it uses less digits than its factorization.

80812427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26148.

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

The square root of 80812427 is about 8989.5732379240. The cubic root of 80812427 is about 432.3406289083.

The spelling of 80812427 in words is "eighty million, eight hundred twelve thousand, four hundred twenty-seven".