5421756 has 24 divisors (see below), whose sum is σ = 12721744. Its totient is φ = 1797120.

The previous prime is 5421751. The next prime is 5421763. The reversal of 5421756 is 6571245.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421751) 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, 1146 + ... + 3486.

Almost surely, 2^5421756 is an apocalyptic number.

It is an amenable number.

5421756 is an abundant number, since it is smaller than the sum of its proper divisors (7299988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5421756 is a wasteful number, since it uses less digits than its factorization.

5421756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541 (or 2539 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 5421756 is about 2328.4664481156. The cubic root of 5421756 is about 175.6763594340.

The spelling of 5421756 in words is "five million, four hundred twenty-one thousand, seven hundred fifty-six".