7281087 has 32 divisors (see below), whose sum is σ = 11321856. Its totient is φ = 4118400.

The previous prime is 7281077. The next prime is 7281089. The reversal of 7281087 is 7801827.

It is not a de Polignac number, because 7281087 - 2⁸ = 7280831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7281089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40137 + ... + 40317.

It is an arithmetic number, because the mean of its divisors is an integer number (353808).

Almost surely, 2^7281087 is an apocalyptic number.

7281087 is a deficient number, since it is larger than the sum of its proper divisors (4040769).

7281087 is a wasteful number, since it uses less digits than its factorization.

7281087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 7281087 is about 2698.3489396296. The cubic root of 7281087 is about 193.8200673392.

The spelling of 7281087 in words is "seven million, two hundred eighty-one thousand, eighty-seven".