6778299 has 24 divisors (see below), whose sum is σ = 10112256. Its totient is φ = 4034800.

The previous prime is 6778297. The next prime is 6778301. The reversal of 6778299 is 9928776.

It is an interprime number because it is at equal distance from previous prime (6778297) and next prime (6778301).

It is not a de Polignac number, because 6778299 - 2¹ = 6778297 is a prime.

6778299 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778297) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25642 + ... + 25904.

It is an arithmetic number, because the mean of its divisors is an integer number (421344).

Almost surely, 2^6778299 is an apocalyptic number.

6778299 is a deficient number, since it is larger than the sum of its proper divisors (3333957).

6778299 is a wasteful number, since it uses less digits than its factorization.

6778299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 348 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 6778299 is about 2603.5166602117. The cubic root of 6778299 is about 189.2518967065.

The spelling of 6778299 in words is "six million, seven hundred seventy-eight thousand, two hundred ninety-nine".