3913523 has 4 divisors (see below), whose sum is σ = 3917688. Its totient is φ = 3909360.

The previous prime is 3913513. The next prime is 3913531. The reversal of 3913523 is 3253193.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3253193 = 53 ⋅61381.

It is a cyclic number.

It is not a de Polignac number, because 3913523 - 2¹² = 3909427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3913492 and 3913501.

It is not an unprimeable number, because it can be changed into a prime (3913513) 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, 68 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (979422).

Almost surely, 2^3913523 is an apocalyptic number.

3913523 is a deficient number, since it is larger than the sum of its proper divisors (4165).

3913523 is a wasteful number, since it uses less digits than its factorization.

3913523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164.

The product of its digits is 2430, while the sum is 26.

The square root of 3913523 is about 1978.2626215950. The cubic root of 3913523 is about 157.5878136325.

The spelling of 3913523 in words is "three million, nine hundred thirteen thousand, five hundred twenty-three".