7281005 has 8 divisors (see below), whose sum is σ = 8923392. Its totient is φ = 5700688.

The previous prime is 7280993. The next prime is 7281011. The reversal of 7281005 is 5001827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7281005 - 2⁶ = 7280941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15257 + ... + 15726.

It is an arithmetic number, because the mean of its divisors is an integer number (1115424).

Almost surely, 2^7281005 is an apocalyptic number.

It is an amenable number.

7281005 is a deficient number, since it is larger than the sum of its proper divisors (1642387).

7281005 is a wasteful number, since it uses less digits than its factorization.

7281005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31035.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 7281005 is about 2698.3337451101. Note that the first 3 decimals coincide. The cubic root of 7281005 is about 193.8193397324.

The spelling of 7281005 in words is "seven million, two hundred eighty-one thousand, five".