80825439 has 16 divisors (see below), whose sum is σ = 110073600. Its totient is φ = 52742976.

The previous prime is 80825431. The next prime is 80825443. The reversal of 80825439 is 93452808.

It is a happy number.

It is not a de Polignac number, because 80825439 - 2³ = 80825431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80825397 and 80825406.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26032 + ... + 28970.

It is an arithmetic number, because the mean of its divisors is an integer number (6879600).

Almost surely, 2^80825439 is an apocalyptic number.

80825439 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

80825439 is a deficient number, since it is larger than the sum of its proper divisors (29248161).

80825439 is a wasteful number, since it uses less digits than its factorization.

80825439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 80825439 is about 8990.2969361418. The cubic root of 80825439 is about 432.3638320820.

The spelling of 80825439 in words is "eighty million, eight hundred twenty-five thousand, four hundred thirty-nine".