80859499 has 4 divisors (see below), whose sum is σ = 92410864. Its totient is φ = 69308136.

The previous prime is 80859487. The next prime is 80859509. The reversal of 80859499 is 99495808.

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 80859499 - 2⁷ = 80859371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80859299) 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, 5775672 + ... + 5775685.

It is an arithmetic number, because the mean of its divisors is an integer number (23102716).

Almost surely, 2^80859499 is an apocalyptic number.

80859499 is a deficient number, since it is larger than the sum of its proper divisors (11551365).

80859499 is a wasteful number, since it uses less digits than its factorization.

80859499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11551364.

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 80859499 is about 8992.1910010853. The cubic root of 80859499 is about 432.4245565446.

The spelling of 80859499 in words is "eighty million, eight hundred fifty-nine thousand, four hundred ninety-nine".