80857446 has 12 divisors (see below), whose sum is σ = 161758956. Its totient is φ = 26945140.

The previous prime is 80857417. The next prime is 80857451. The reversal of 80857446 is 64475808.

It is a junction number, because it is equal to n+sod(n) for n = 80857398 and 80857407.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 20191 + ... + 23861.

It is an arithmetic number, because the mean of its divisors is an integer number (13479913).

Almost surely, 2^80857446 is an apocalyptic number.

80857446 is an abundant number, since it is smaller than the sum of its proper divisors (80901510).

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

80857446 is an frugal number, since it uses more digits than its factorization.

80857446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7347 (or 3676 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 80857446 is about 8992.0768457570. The cubic root of 80857446 is about 432.4208968009.

The spelling of 80857446 in words is "eighty million, eight hundred fifty-seven thousand, four hundred forty-six".