3948013 has 4 divisors (see below), whose sum is σ = 4044348. Its totient is φ = 3851680.

The previous prime is 3947987. The next prime is 3948071. The reversal of 3948013 is 3108493.

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 927369 + 3020644 = 963^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 3948013 - 2⁹ = 3947501 is a prime.

It is a Duffinian number.

3948013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948073) 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, 48106 + ... + 48187.

It is an arithmetic number, because the mean of its divisors is an integer number (1011087).

Almost surely, 2^3948013 is an apocalyptic number.

It is an amenable number.

3948013 is a deficient number, since it is larger than the sum of its proper divisors (96335).

3948013 is an equidigital number, since it uses as much as digits as its factorization.

3948013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96334.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3948013 is about 1986.9607444537. The cubic root of 3948013 is about 158.0494023799.

It can be divided in two parts, 39480 and 13, that added together give a palindrome (39493).

The spelling of 3948013 in words is "three million, nine hundred forty-eight thousand, thirteen".