7087281 has 8 divisors (see below), whose sum is σ = 9775680. Its totient is φ = 4561872.

The previous prime is 7087277. The next prime is 7087307. The reversal of 7087281 is 1827807.

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

It is not a de Polignac number, because 7087281 - 2² = 7087277 is a prime.

It is a super-2 number, since 2×7087281² = 100459103945922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7087261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40645 + ... + 40818.

It is an arithmetic number, because the mean of its divisors is an integer number (1221960).

Almost surely, 2^7087281 is an apocalyptic number.

It is an amenable number.

7087281 is a deficient number, since it is larger than the sum of its proper divisors (2688399).

7087281 is a wasteful number, since it uses less digits than its factorization.

7087281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81495.

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

The square root of 7087281 is about 2662.1947712367. The cubic root of 7087281 is about 192.0848962668.

The spelling of 7087281 in words is "seven million, eighty-seven thousand, two hundred eighty-one".