5421624 has 32 divisors (see below), whose sum is σ = 14597520. Its totient is φ = 1668096.

The previous prime is 5421607. The next prime is 5421641. The reversal of 5421624 is 4261245.

It is an interprime number because it is at equal distance from previous prime (5421607) and next prime (5421641).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 5421594 and 5421603.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8377 + ... + 9000.

Almost surely, 2^5421624 is an apocalyptic number.

It is an amenable number.

5421624 is an abundant number, since it is smaller than the sum of its proper divisors (9175896).

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

5421624 is a wasteful number, since it uses less digits than its factorization.

5421624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17399 (or 17395 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 5421624 is about 2328.4381031069. The cubic root of 5421624 is about 175.6749337294.

Adding to 5421624 its reverse (4261245), we get a palindrome (9682869).

The spelling of 5421624 in words is "five million, four hundred twenty-one thousand, six hundred twenty-four".