80807894 has 4 divisors (see below), whose sum is σ = 121211844. Its totient is φ = 40403946.

The previous prime is 80807863. The next prime is 80807897. The reversal of 80807894 is 49870808.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80807897) 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 as a sum of consecutive naturals, namely, 20201972 + ... + 20201975.

It is an arithmetic number, because the mean of its divisors is an integer number (30302961).

Almost surely, 2^80807894 is an apocalyptic number.

80807894 is a deficient number, since it is larger than the sum of its proper divisors (40403950).

80807894 is a wasteful number, since it uses less digits than its factorization.

80807894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40403949.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 80807894 is about 8989.3211089603. The cubic root of 80807894 is about 432.3325450166.

The spelling of 80807894 in words is "eighty million, eight hundred seven thousand, eight hundred ninety-four".