6542387 has 2 divisors, whose sum is σ = 6542388. Its totient is φ = 6542386.

The previous prime is 6542381. The next prime is 6542401. The reversal of 6542387 is 7832456.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6542387 - 2⁸ = 6542131 is a prime.

It is a d-powerful number, because it can be written as 6³ + 5⁸ + 4² + 2¹⁶ + 3¹⁰ + 8⁶ + 7⁸ .

It is not a weakly prime, because it can be changed into another prime (6542381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271193 + 3271194.

It is an arithmetic number, because the mean of its divisors is an integer number (3271194).

Almost surely, 2^6542387 is an apocalyptic number.

6542387 is a deficient number, since it is larger than the sum of its proper divisors (1).

6542387 is an equidigital number, since it uses as much as digits as its factorization.

6542387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 6542387 is about 2557.8090233636. The cubic root of 6542387 is about 187.0303457669.

The spelling of 6542387 in words is "six million, five hundred forty-two thousand, three hundred eighty-seven".