5421965 has 8 divisors (see below), whose sum is σ = 6530328. Its totient is φ = 4321600.

The previous prime is 5421947. The next prime is 5422003. The reversal of 5421965 is 5691245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1473796 + 3948169 = 1214^2 + 1987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5421965 - 2⁸ = 5421709 is a prime.

It is a super-2 number, since 2×5421965² = 58795408922450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 386 + ... + 3315.

It is an arithmetic number, because the mean of its divisors is an integer number (816291).

Almost surely, 2^5421965 is an apocalyptic number.

It is an amenable number.

5421965 is a deficient number, since it is larger than the sum of its proper divisors (1108363).

5421965 is a wasteful number, since it uses less digits than its factorization.

5421965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999.

The product of its digits is 10800, while the sum is 32.

The square root of 5421965 is about 2328.5113270070. The cubic root of 5421965 is about 175.6786167523.

The spelling of 5421965 in words is "five million, four hundred twenty-one thousand, nine hundred sixty-five".