3732021 has 16 divisors (see below), whose sum is σ = 5560000. Its totient is φ = 2474064.

The previous prime is 3732019. The next prime is 3732031. The reversal of 3732021 is 1202373.

It is not a de Polignac number, because 3732021 - 2¹ = 3732019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3731985 and 3732003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3732031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7230 + ... + 7728.

It is an arithmetic number, because the mean of its divisors is an integer number (347500).

Almost surely, 2^3732021 is an apocalyptic number.

It is an amenable number.

3732021 is a deficient number, since it is larger than the sum of its proper divisors (1827979).

3732021 is a wasteful number, since it uses less digits than its factorization.

3732021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 3732021 is about 1931.8439377962. The cubic root of 3732021 is about 155.1129388470.

Adding to 3732021 its reverse (1202373), we get a palindrome (4934394).

The spelling of 3732021 in words is "three million, seven hundred thirty-two thousand, twenty-one".