5491845 has 12 divisors (see below), whose sum is σ = 9519276. Its totient is φ = 2928960.

The previous prime is 5491841. The next prime is 5491847. The reversal of 5491845 is 5481945.

It can be written as a sum of positive squares in 2 ways, for example, as 1595169 + 3896676 = 1263^2 + 1974^2 .

It is not a de Polignac number, because 5491845 - 2² = 5491841 is a prime.

5491845 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491841) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 60976 + ... + 61065.

It is an arithmetic number, because the mean of its divisors is an integer number (793273).

Almost surely, 2^5491845 is an apocalyptic number.

It is an amenable number.

5491845 is a deficient number, since it is larger than the sum of its proper divisors (4027431).

5491845 is a wasteful number, since it uses less digits than its factorization.

5491845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122052 (or 122049 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 5491845 is about 2343.4685831050. The cubic root of 5491845 is about 176.4301312159.

It can be divided in two parts, 5491 and 845, that added together give a palindrome (6336).

The spelling of 5491845 in words is "five million, four hundred ninety-one thousand, eight hundred forty-five".