80789847 has 4 divisors (see below), whose sum is σ = 107719800. Its totient is φ = 53859896.

The previous prime is 80789791. The next prime is 80789867. The reversal of 80789847 is 74898708.

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 80789847 - 2⁶ = 80789783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80789847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80789867) 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, 13464972 + ... + 13464977.

It is an arithmetic number, because the mean of its divisors is an integer number (26929950).

Almost surely, 2^80789847 is an apocalyptic number.

80789847 is a deficient number, since it is larger than the sum of its proper divisors (26929953).

80789847 is a wasteful number, since it uses less digits than its factorization.

80789847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26929952.

The product of its (nonzero) digits is 903168, while the sum is 51.

The square root of 80789847 is about 8988.3172507428. The cubic root of 80789847 is about 432.3003580360.

The spelling of 80789847 in words is "eighty million, seven hundred eighty-nine thousand, eight hundred forty-seven".