5641851 has 8 divisors (see below), whose sum is σ = 7547904. Its totient is φ = 3748520.

The previous prime is 5641847. The next prime is 5641859. The reversal of 5641851 is 1581465.

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 5641851 - 2² = 5641847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5641859) 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, 2091 + ... + 3956.

It is an arithmetic number, because the mean of its divisors is an integer number (943488).

Almost surely, 2^5641851 is an apocalyptic number.

5641851 is a deficient number, since it is larger than the sum of its proper divisors (1906053).

5641851 is a wasteful number, since it uses less digits than its factorization.

5641851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6361.

The product of its digits is 4800, while the sum is 30.

The square root of 5641851 is about 2375.2580912398. The cubic root of 5641851 is about 178.0220799105.

It can be divided in two parts, 564 and 1851, that added together give a triangular number (2415 = T₆₉).

The spelling of 5641851 in words is "five million, six hundred forty-one thousand, eight hundred fifty-one".