80416399 has 12 divisors (see below), whose sum is σ = 93698424. Its totient is φ = 68815824.

The previous prime is 80416381. The next prime is 80416403. The reversal of 80416399 is 99361408.

It is not a de Polignac number, because 80416399 - 2⁵ = 80416367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80416199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45537 + ... + 47269.

It is an arithmetic number, because the mean of its divisors is an integer number (7808202).

Almost surely, 2^80416399 is an apocalyptic number.

80416399 is a deficient number, since it is larger than the sum of its proper divisors (13282025).

80416399 is a wasteful number, since it uses less digits than its factorization.

80416399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 80416399 is about 8967.5191106571. The cubic root of 80416399 is about 431.6332317257.

The spelling of 80416399 in words is "eighty million, four hundred sixteen thousand, three hundred ninety-nine".