3629421 has 16 divisors (see below), whose sum is σ = 5409600. Its totient is φ = 2404944.

The previous prime is 3629413. The next prime is 3629459. The reversal of 3629421 is 1249263.

It is not a de Polignac number, because 3629421 - 2³ = 3629413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3629401) 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 15 ways as a sum of consecutive naturals, for example, 5890 + ... + 6476.

It is an arithmetic number, because the mean of its divisors is an integer number (338100).

Almost surely, 2^3629421 is an apocalyptic number.

It is an amenable number.

3629421 is a deficient number, since it is larger than the sum of its proper divisors (1780179).

3629421 is a wasteful number, since it uses less digits than its factorization.

3629421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 819 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 3629421 is about 1905.1039341726. The cubic root of 3629421 is about 153.6782651678.

It can be divided in two parts, 36294 and 21, that added together give a triangular number (36315 = T₂₆₉).

The spelling of 3629421 in words is "three million, six hundred twenty-nine thousand, four hundred twenty-one".