80469539 has 4 divisors (see below), whose sum is σ = 80487624. Its totient is φ = 80451456.

The previous prime is 80469509. The next prime is 80469563. The reversal of 80469539 is 93596408.

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 80469539 - 2⁸ = 80469283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80469539.

It is not an unprimeable number, because it can be changed into a prime (80469509) 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, 2819 + ... + 12995.

It is an arithmetic number, because the mean of its divisors is an integer number (20121906).

Almost surely, 2^80469539 is an apocalyptic number.

80469539 is a deficient number, since it is larger than the sum of its proper divisors (18085).

80469539 is a wasteful number, since it uses less digits than its factorization.

80469539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18084.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 80469539 is about 8970.4815366846. The cubic root of 80469539 is about 431.7282867134.

The spelling of 80469539 in words is "eighty million, four hundred sixty-nine thousand, five hundred thirty-nine".