80469391 has 4 divisors (see below), whose sum is σ = 80491312. Its totient is φ = 80447472.

The previous prime is 80469377. The next prime is 80469401. The reversal of 80469391 is 19396408.

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 80469391 - 2¹⁵ = 80436623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80469091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3966 + ... + 13291.

It is an arithmetic number, because the mean of its divisors is an integer number (20122828).

Almost surely, 2^80469391 is an apocalyptic number.

80469391 is a deficient number, since it is larger than the sum of its proper divisors (21921).

80469391 is a wasteful number, since it uses less digits than its factorization.

80469391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21920.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 80469391 is about 8970.4732874024. The cubic root of 80469391 is about 431.7280220343.

The spelling of 80469391 in words is "eighty million, four hundred sixty-nine thousand, three hundred ninety-one".