3948517 has 4 divisors (see below), whose sum is σ = 4032576. Its totient is φ = 3864460.

The previous prime is 3948493. The next prime is 3948521. The reversal of 3948517 is 7158493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3948517 - 2¹¹ = 3946469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948547) 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, 41959 + ... + 42052.

It is an arithmetic number, because the mean of its divisors is an integer number (1008144).

Almost surely, 2^3948517 is an apocalyptic number.

It is an amenable number.

3948517 is a deficient number, since it is larger than the sum of its proper divisors (84059).

3948517 is an equidigital number, since it uses as much as digits as its factorization.

3948517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84058.

The product of its digits is 30240, while the sum is 37.

The square root of 3948517 is about 1987.0875672702. The cubic root of 3948517 is about 158.0561275781.

It can be divided in two parts, 3948 and 517, that added together give a triangular number (4465 = T₉₄).

The spelling of 3948517 in words is "three million, nine hundred forty-eight thousand, five hundred seventeen".