7284939 has 4 divisors (see below), whose sum is σ = 9713256. Its totient is φ = 4856624.

The previous prime is 7284899. The next prime is 7284941. The reversal of 7284939 is 9394827.

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 7284939 - 2⁷ = 7284811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7284939.

It is not an unprimeable number, because it can be changed into a prime (7282939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214154 + ... + 1214159.

It is an arithmetic number, because the mean of its divisors is an integer number (2428314).

Almost surely, 2^7284939 is an apocalyptic number.

7284939 is a deficient number, since it is larger than the sum of its proper divisors (2428317).

7284939 is a wasteful number, since it uses less digits than its factorization.

7284939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428316.

The product of its digits is 108864, while the sum is 42.

The square root of 7284939 is about 2699.0626150573. The cubic root of 7284939 is about 193.8542409581.

The spelling of 7284939 in words is "seven million, two hundred eighty-four thousand, nine hundred thirty-nine".