7088681 has 6 divisors (see below), whose sum is σ = 7244970. Its totient is φ = 6935696.

The previous prime is 7088671. The next prime is 7088687. The reversal of 7088681 is 1868807.

It can be written as a sum of positive squares in only one way, i.e., 6205081 + 883600 = 2491^2 + 940^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7088681 is a prime.

It is a super-2 number, since 2×7088681² = 100498796639522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7088687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 605 + ... + 3813.

It is an arithmetic number, because the mean of its divisors is an integer number (1207495).

Almost surely, 2^7088681 is an apocalyptic number.

It is an amenable number.

7088681 is a deficient number, since it is larger than the sum of its proper divisors (156289).

7088681 is an equidigital number, since it uses as much as digits as its factorization.

7088681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303 (or 3256 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 7088681 is about 2662.4576991945. The cubic root of 7088681 is about 192.0975433901.

The spelling of 7088681 in words is "seven million, eighty-eight thousand, six hundred eighty-one".