3917525 has 12 divisors (see below), whose sum is σ = 4882500. Its totient is φ = 3118080.

The previous prime is 3917491. The next prime is 3917527. The reversal of 3917525 is 5257193.

It can be written as a sum of positive squares in 6 ways, for example, as 5041 + 3912484 = 71^2 + 1978^2 .

It is not a de Polignac number, because 3917525 - 2⁶ = 3917461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3917491 and 3917500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3917527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8501 + ... + 8949.

It is an arithmetic number, because the mean of its divisors is an integer number (406875).

Almost surely, 2^3917525 is an apocalyptic number.

It is an amenable number.

3917525 is a deficient number, since it is larger than the sum of its proper divisors (964975).

3917525 is a wasteful number, since it uses less digits than its factorization.

3917525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 803 counting only the distinct ones).

The product of its digits is 9450, while the sum is 32.

The square root of 3917525 is about 1979.2738567465. The cubic root of 3917525 is about 157.6415121864.

The spelling of 3917525 in words is "three million, nine hundred seventeen thousand, five hundred twenty-five".