7280413 has 4 divisors (see below), whose sum is σ = 8320480. Its totient is φ = 6240348.

The previous prime is 7280393. The next prime is 7280417. The reversal of 7280413 is 3140827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7280413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7280417) 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, 520023 + ... + 520036.

It is an arithmetic number, because the mean of its divisors is an integer number (2080120).

Almost surely, 2^7280413 is an apocalyptic number.

It is an amenable number.

7280413 is a deficient number, since it is larger than the sum of its proper divisors (1040067).

7280413 is a wasteful number, since it uses less digits than its factorization.

7280413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040066.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 7280413 is about 2698.2240455529. The cubic root of 7280413 is about 193.8140866041.

The spelling of 7280413 in words is "seven million, two hundred eighty thousand, four hundred thirteen".