3677521 has 4 divisors (see below), whose sum is σ = 3727972. Its totient is φ = 3627072.

The previous prime is 3677477. The next prime is 3677533. The reversal of 3677521 is 1257763.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2387025 + 1290496 = 1545^2 + 1136^2 .

It is a cyclic number.

It is not a de Polignac number, because 3677521 - 2¹¹ = 3675473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3677581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25116 + ... + 25261.

It is an arithmetic number, because the mean of its divisors is an integer number (931993).

Almost surely, 2^3677521 is an apocalyptic number.

It is an amenable number.

3677521 is a deficient number, since it is larger than the sum of its proper divisors (50451).

3677521 is an equidigital number, since it uses as much as digits as its factorization.

3677521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50450.

The product of its digits is 8820, while the sum is 31.

The square root of 3677521 is about 1917.6863664322. The cubic root of 3677521 is about 154.3541772305.

The spelling of 3677521 in words is "three million, six hundred seventy-seven thousand, five hundred twenty-one".