80427009 has 8 divisors (see below), whose sum is σ = 115484992. Its totient is φ = 49493520.

The previous prime is 80426999. The next prime is 80427013. The reversal of 80427009 is 90072408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80427009 - 2⁹ = 80426497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80427029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031077 + ... + 1031154.

It is an arithmetic number, because the mean of its divisors is an integer number (14435624).

Almost surely, 2^80427009 is an apocalyptic number.

It is an amenable number.

80427009 is a deficient number, since it is larger than the sum of its proper divisors (35057983).

80427009 is a wasteful number, since it uses less digits than its factorization.

80427009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062247.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 80427009 is about 8968.1106705928. The cubic root of 80427009 is about 431.6522138706.

It can be divided in two parts, 8042 and 7009, that added together give a palindrome (15051).

The spelling of 80427009 in words is "eighty million, four hundred twenty-seven thousand, nine".