82078299 has 8 divisors (see below), whose sum is σ = 121597520. Its totient is φ = 54718848.

The previous prime is 82078273. The next prime is 82078301. The reversal of 82078299 is 99287028.

It is not a de Polignac number, because 82078299 - 2⁵ = 82078267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82078229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1519942 + ... + 1519995.

It is an arithmetic number, because the mean of its divisors is an integer number (15199690).

Almost surely, 2^82078299 is an apocalyptic number.

82078299 is a deficient number, since it is larger than the sum of its proper divisors (39519221).

82078299 is a wasteful number, since it uses less digits than its factorization.

82078299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039946 (or 3039940 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 82078299 is about 9059.7074456077. The cubic root of 82078299 is about 434.5863844880.

The spelling of 82078299 in words is "eighty-two million, seventy-eight thousand, two hundred ninety-nine".