7081387 has 2 divisors, whose sum is σ = 7081388. Its totient is φ = 7081386.

The previous prime is 7081379. The next prime is 7081411. The reversal of 7081387 is 7831807.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7081387 - 2³ = 7081379 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (7081337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3540693 + 3540694.

It is an arithmetic number, because the mean of its divisors is an integer number (3540694).

Almost surely, 2^7081387 is an apocalyptic number.

7081387 is a deficient number, since it is larger than the sum of its proper divisors (1).

7081387 is an equidigital number, since it uses as much as digits as its factorization.

7081387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 7081387 is about 2661.0875596267. The cubic root of 7081387 is about 192.0316336044.

The spelling of 7081387 in words is "seven million, eighty-one thousand, three hundred eighty-seven".