6542658 has 12 divisors (see below), whose sum is σ = 14175798. Its totient is φ = 2180880.

The previous prime is 6542647. The next prime is 6542681. The reversal of 6542658 is 8562456.

It can be written as a sum of positive squares in only one way, i.e., 3908529 + 2634129 = 1977^2 + 1623^2 .

It is a d-powerful number, because it can be written as 6² + 5⁸ + 4⁴ + 2²² + 6³ + 5⁹ + 8⁴ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181723 + ... + 181758.

Almost surely, 2^6542658 is an apocalyptic number.

6542658 is an abundant number, since it is smaller than the sum of its proper divisors (7633140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6542658 is a wasteful number, since it uses less digits than its factorization.

6542658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363489 (or 363486 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 6542658 is about 2557.8619978412. The cubic root of 6542658 is about 187.0329281334.

The spelling of 6542658 in words is "six million, five hundred forty-two thousand, six hundred fifty-eight".