80825438 has 4 divisors (see below), whose sum is σ = 121238160. Its totient is φ = 40412718.

The previous prime is 80825431. The next prime is 80825443. The reversal of 80825438 is 83452808.

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 (80825431) 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, 20206358 + ... + 20206361.

It is an arithmetic number, because the mean of its divisors is an integer number (30309540).

Almost surely, 2^80825438 is an apocalyptic number.

80825438 is a deficient number, since it is larger than the sum of its proper divisors (40412722).

80825438 is a wasteful number, since it uses less digits than its factorization.

80825438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40412721.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 80825438 is about 8990.2968805262. The cubic root of 80825438 is about 432.3638302989.

The spelling of 80825438 in words is "eighty million, eight hundred twenty-five thousand, four hundred thirty-eight".