3750521 has 8 divisors (see below), whose sum is σ = 3853920. Its totient is φ = 3648672.

The previous prime is 3750517. The next prime is 3750529. The reversal of 3750521 is 1250573.

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 3750521 - 2² = 3750517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3750529) 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, 5750 + ... + 6368.

It is an arithmetic number, because the mean of its divisors is an integer number (481740).

Almost surely, 2^3750521 is an apocalyptic number.

It is an amenable number.

3750521 is a deficient number, since it is larger than the sum of its proper divisors (103399).

3750521 is an equidigital number, since it uses as much as digits as its factorization.

3750521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 3750521 is about 1936.6261900532. The cubic root of 3750521 is about 155.3688199340.

The spelling of 3750521 in words is "three million, seven hundred fifty thousand, five hundred twenty-one".