3732421 has 8 divisors (see below), whose sum is σ = 4653504. Its totient is φ = 2908320.

The previous prime is 3732409. The next prime is 3732433. The reversal of 3732421 is 1242373.

It is an interprime number because it is at equal distance from previous prime (3732409) and next prime (3732433).

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 3732421 - 2⁵ = 3732389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3732392 and 3732401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3732461) 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, 24160 + ... + 24313.

It is an arithmetic number, because the mean of its divisors is an integer number (581688).

Almost surely, 2^3732421 is an apocalyptic number.

It is an amenable number.

3732421 is a deficient number, since it is larger than the sum of its proper divisors (921083).

3732421 is a wasteful number, since it uses less digits than its factorization.

3732421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48491.

The product of its digits is 1008, while the sum is 22.

The square root of 3732421 is about 1931.9474630538. The cubic root of 3732421 is about 155.1184803449.

Adding to 3732421 its reverse (1242373), we get a palindrome (4974794).

The spelling of 3732421 in words is "three million, seven hundred thirty-two thousand, four hundred twenty-one".