6634543 has 6 divisors (see below), whose sum is σ = 6748872. Its totient is φ = 6522120.

The previous prime is 6634531. The next prime is 6634547. The reversal of 6634543 is 3454366.

It is not a de Polignac number, because 6634543 - 2¹³ = 6626351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6634547) 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 5 ways as a sum of consecutive naturals, for example, 2830 + ... + 4612.

It is an arithmetic number, because the mean of its divisors is an integer number (1124812).

Almost surely, 2^6634543 is an apocalyptic number.

6634543 is a deficient number, since it is larger than the sum of its proper divisors (114329).

6634543 is an equidigital number, since it uses as much as digits as its factorization.

6634543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905 (or 1844 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 6634543 is about 2575.7606643475. The cubic root of 6634543 is about 187.9044236535.

The spelling of 6634543 in words is "six million, six hundred thirty-four thousand, five hundred forty-three".