6978299 has 4 divisors (see below), whose sum is σ = 7218960. Its totient is φ = 6737640.

The previous prime is 6978287. The next prime is 6978319. The reversal of 6978299 is 9928796.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6978299 - 2²⁰ = 5929723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6978199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120287 + ... + 120344.

It is an arithmetic number, because the mean of its divisors is an integer number (1804740).

Almost surely, 2^6978299 is an apocalyptic number.

6978299 is a deficient number, since it is larger than the sum of its proper divisors (240661).

6978299 is a wasteful number, since it uses less digits than its factorization.

6978299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240660.

The product of its digits is 489888, while the sum is 50.

The square root of 6978299 is about 2641.6470241120. The cubic root of 6978299 is about 191.0952349826.

The spelling of 6978299 in words is "six million, nine hundred seventy-eight thousand, two hundred ninety-nine".