80821414 has 16 divisors (see below), whose sum is σ = 124681536. Its totient is φ = 39268800.

The previous prime is 80821399. The next prime is 80821423. The reversal of 80821414 is 41412808.

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 7 ways as a sum of consecutive naturals, for example, 20404 + ... + 24040.

It is an arithmetic number, because the mean of its divisors is an integer number (7792596).

Almost surely, 2^80821414 is an apocalyptic number.

80821414 is a deficient number, since it is larger than the sum of its proper divisors (43860122).

80821414 is a wasteful number, since it uses less digits than its factorization.

80821414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 80821414 is about 8990.0730809043. The cubic root of 80821414 is about 432.3566549138.

It can be divided in two parts, 808 and 21414, that added together give a palindrome (22222).

The spelling of 80821414 in words is "eighty million, eight hundred twenty-one thousand, four hundred fourteen".