7280339 has 4 divisors (see below), whose sum is σ = 7942200. Its totient is φ = 6618480.

The previous prime is 7280323. The next prime is 7280341. The reversal of 7280339 is 9330827.

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

It is not a de Polignac number, because 7280339 - 2⁴ = 7280323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7280309) 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, 330914 + ... + 330935.

It is an arithmetic number, because the mean of its divisors is an integer number (1985550).

Almost surely, 2^7280339 is an apocalyptic number.

7280339 is a deficient number, since it is larger than the sum of its proper divisors (661861).

7280339 is a wasteful number, since it uses less digits than its factorization.

7280339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661860.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 7280339 is about 2698.2103327947. The cubic root of 7280339 is about 193.8134299431.

The spelling of 7280339 in words is "seven million, two hundred eighty thousand, three hundred thirty-nine".