80563844 has 12 divisors (see below), whose sum is σ = 142002000. Its totient is φ = 39991848.

The previous prime is 80563843. The next prime is 80563907. The reversal of 80563844 is 44836508.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80563798 and 80563807.

It is not an unprimeable number, because it can be changed into a prime (80563841) 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, 71894 + ... + 73005.

It is an arithmetic number, because the mean of its divisors is an integer number (11833500).

Almost surely, 2^80563844 is an apocalyptic number.

It is an amenable number.

80563844 is a deficient number, since it is larger than the sum of its proper divisors (61438156).

80563844 is a wasteful number, since it uses less digits than its factorization.

80563844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145042 (or 145040 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 80563844 is about 8975.7364043292. The cubic root of 80563844 is about 431.8968732460.

The spelling of 80563844 in words is "eighty million, five hundred sixty-three thousand, eight hundred forty-four".