80747859 has 4 divisors (see below), whose sum is σ = 107663816. Its totient is φ = 53831904.

The previous prime is 80747857. The next prime is 80747869. The reversal of 80747859 is 95874708.

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

It is not a de Polignac number, because 80747859 - 2¹ = 80747857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80747857) 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, 13457974 + ... + 13457979.

It is an arithmetic number, because the mean of its divisors is an integer number (26915954).

Almost surely, 2^80747859 is an apocalyptic number.

80747859 is a deficient number, since it is larger than the sum of its proper divisors (26915957).

80747859 is a wasteful number, since it uses less digits than its factorization.

80747859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26915956.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 80747859 is about 8985.9812485894. The cubic root of 80747859 is about 432.2254535211.

The spelling of 80747859 in words is "eighty million, seven hundred forty-seven thousand, eight hundred fifty-nine".