3632421 has 8 divisors (see below), whose sum is σ = 5215840. Its totient is φ = 2235312.

The previous prime is 3632411. The next prime is 3632423. The reversal of 3632421 is 1242363.

It is a happy number.

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

It is not a de Polignac number, because 3632421 - 2⁵ = 3632389 is a prime.

It is an Ulam number.

It is a Duffinian number.

3632421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3632423) 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, 46531 + ... + 46608.

It is an arithmetic number, because the mean of its divisors is an integer number (651980).

Almost surely, 2^3632421 is an apocalyptic number.

It is an amenable number.

3632421 is a deficient number, since it is larger than the sum of its proper divisors (1583419).

3632421 is a wasteful number, since it uses less digits than its factorization.

3632421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93155.

The product of its digits is 864, while the sum is 21.

The square root of 3632421 is about 1905.8911301541. The cubic root of 3632421 is about 153.7205958707.

Adding to 3632421 its reverse (1242363), we get a palindrome (4874784).

The spelling of 3632421 in words is "three million, six hundred thirty-two thousand, four hundred twenty-one".