7028979 has 4 divisors (see below), whose sum is σ = 9371976. Its totient is φ = 4685984.

The previous prime is 7028977. The next prime is 7029013. The reversal of 7028979 is 9798207.

7028979 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7028979 - 2¹ = 7028977 is a prime.

It is a D-number.

7028979 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7028979.

It is not an unprimeable number, because it can be changed into a prime (7028977) 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, 1171494 + ... + 1171499.

It is an arithmetic number, because the mean of its divisors is an integer number (2342994).

Almost surely, 2^7028979 is an apocalyptic number.

7028979 is a deficient number, since it is larger than the sum of its proper divisors (2342997).

7028979 is a wasteful number, since it uses less digits than its factorization.

7028979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342996.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 7028979 is about 2651.2221709996. Note that the first 3 decimals coincide. The cubic root of 7028979 is about 191.5567302333.

The spelling of 7028979 in words is "seven million, twenty-eight thousand, nine hundred seventy-nine".