80563842 has 32 divisors (see below), whose sum is σ = 181560960. Its totient is φ = 26475120.

The previous prime is 80563841. The next prime is 80563843. The reversal of 80563842 is 24836508.

It is an interprime number because it is at equal distance from previous prime (80563841) and next prime (80563843).

It is a junction number, because it is equal to n+sod(n) for n = 80563797 and 80563806.

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 15 ways as a sum of consecutive naturals, for example, 6673 + ... + 14340.

It is an arithmetic number, because the mean of its divisors is an integer number (5673780).

Almost surely, 2^80563842 is an apocalyptic number.

80563842 is an abundant number, since it is smaller than the sum of its proper divisors (100997118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80563842 is a wasteful number, since it uses less digits than its factorization.

80563842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21095 (or 21089 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 80563842 is about 8975.7362929177. The cubic root of 80563842 is about 431.8968696720.

The spelling of 80563842 in words is "eighty million, five hundred sixty-three thousand, eight hundred forty-two".