3754521 has 6 divisors (see below), whose sum is σ = 5423210. Its totient is φ = 2503008.

The previous prime is 3754519. The next prime is 3754567. The reversal of 3754521 is 1254573.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3686400 + 68121 = 1920^2 + 261^2 .

It is not a de Polignac number, because 3754521 - 2¹ = 3754519 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3754511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208576 + ... + 208593.

Almost surely, 2^3754521 is an apocalyptic number.

It is an amenable number.

3754521 is a deficient number, since it is larger than the sum of its proper divisors (1668689).

3754521 is a wasteful number, since it uses less digits than its factorization.

3754521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417175 (or 417172 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 3754521 is about 1937.6586386668. The cubic root of 3754521 is about 155.4240348826.

The spelling of 3754521 in words is "three million, seven hundred fifty-four thousand, five hundred twenty-one".