80494847 has 4 divisors (see below), whose sum is σ = 85229856. Its totient is φ = 75759840.

The previous prime is 80494831. The next prime is 80494861. The reversal of 80494847 is 74849408.

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 80494847 - 2⁴ = 80494831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80494798 and 80494807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80494867) 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, 2367479 + ... + 2367512.

It is an arithmetic number, because the mean of its divisors is an integer number (21307464).

Almost surely, 2^80494847 is an apocalyptic number.

80494847 is a deficient number, since it is larger than the sum of its proper divisors (4735009).

80494847 is a wasteful number, since it uses less digits than its factorization.

80494847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735008.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 80494847 is about 8971.8920524046. The cubic root of 80494847 is about 431.7735420750.

The spelling of 80494847 in words is "eighty million, four hundred ninety-four thousand, eight hundred forty-seven".