80881047 has 24 divisors (see below), whose sum is σ = 126126000. Its totient is φ = 49650048.

The previous prime is 80881039. The next prime is 80881079. The reversal of 80881047 is 74018808.

It is not a de Polignac number, because 80881047 - 2³ = 80881039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80881147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76579 + ... + 77627.

It is an arithmetic number, because the mean of its divisors is an integer number (5255250).

Almost surely, 2^80881047 is an apocalyptic number.

80881047 is a deficient number, since it is larger than the sum of its proper divisors (45244953).

80881047 is a wasteful number, since it uses less digits than its factorization.

80881047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 80881047 is about 8993.3890719795. The cubic root of 80881047 is about 432.4629649645.

The spelling of 80881047 in words is "eighty million, eight hundred eighty-one thousand, forty-seven".