6849551 has 4 divisors (see below), whose sum is σ = 7034712. Its totient is φ = 6664392.

The previous prime is 6849541. The next prime is 6849559. The reversal of 6849551 is 1559486.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6849551 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 (6849559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92525 + ... + 92598.

It is an arithmetic number, because the mean of its divisors is an integer number (1758678).

Almost surely, 2^6849551 is an apocalyptic number.

6849551 is a deficient number, since it is larger than the sum of its proper divisors (185161).

6849551 is a wasteful number, since it uses less digits than its factorization.

6849551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185160.

The product of its digits is 43200, while the sum is 38.

The square root of 6849551 is about 2617.1646872140. The cubic root of 6849551 is about 189.9127115206.

The spelling of 6849551 in words is "six million, eight hundred forty-nine thousand, five hundred fifty-one".