5421631 has 8 divisors (see below), whose sum is σ = 5788800. Its totient is φ = 5062680.

The previous prime is 5421607. The next prime is 5421641. The reversal of 5421631 is 1361245.

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 5421631 - 2⁵ = 5421599 is a prime.

It is a super-2 number, since 2×5421631² = 58788165400322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 3358.

It is an arithmetic number, because the mean of its divisors is an integer number (723600).

Almost surely, 2^5421631 is an apocalyptic number.

5421631 is a deficient number, since it is larger than the sum of its proper divisors (367169).

5421631 is a wasteful number, since it uses less digits than its factorization.

5421631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109.

The product of its digits is 720, while the sum is 22.

The square root of 5421631 is about 2328.4396062600. The cubic root of 5421631 is about 175.6750093355.

Adding to 5421631 its reverse (1361245), we get a palindrome (6782876).

The spelling of 5421631 in words is "five million, four hundred twenty-one thousand, six hundred thirty-one".