6542899 has 8 divisors (see below), whose sum is σ = 7174080. Its totient is φ = 5917800.

The previous prime is 6542867. The next prime is 6542927. The reversal of 6542899 is 9982456.

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

It is a cyclic number.

It is not a de Polignac number, because 6542899 - 2⁵ = 6542867 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 5² + 4⁶ + 2¹⁶ + 8⁴ + 9⁴ + 9⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6542299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912 + ... + 3730.

It is an arithmetic number, because the mean of its divisors is an integer number (896760).

Almost surely, 2^6542899 is an apocalyptic number.

6542899 is a deficient number, since it is larger than the sum of its proper divisors (631181).

6542899 is a wasteful number, since it uses less digits than its factorization.

6542899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041.

The product of its digits is 155520, while the sum is 43.

The square root of 6542899 is about 2557.9091070638. The cubic root of 6542899 is about 187.0352245692.

It can be divided in two parts, 654 and 2899, that added together give a palindrome (3553).

The spelling of 6542899 in words is "six million, five hundred forty-two thousand, eight hundred ninety-nine".