3821537 has 8 divisors (see below), whose sum is σ = 3900072. Its totient is φ = 3744000.

The previous prime is 3821513. The next prime is 3821563. The reversal of 3821537 is 7351283.

It can be written as a sum of positive squares in 4 ways, for example, as 1628176 + 2193361 = 1276^2 + 1481^2 .

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 3821537 - 2¹⁰ = 3820513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3821137) 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, 15737 + ... + 15977.

It is an arithmetic number, because the mean of its divisors is an integer number (487509).

Almost surely, 2^3821537 is an apocalyptic number.

It is an amenable number.

3821537 is a deficient number, since it is larger than the sum of its proper divisors (78535).

3821537 is a wasteful number, since it uses less digits than its factorization.

3821537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499.

The product of its digits is 5040, while the sum is 29.

The square root of 3821537 is about 1954.8751878317. The cubic root of 3821537 is about 156.3433294158.

The spelling of 3821537 in words is "three million, eight hundred twenty-one thousand, five hundred thirty-seven".