3957715 has 4 divisors (see below), whose sum is σ = 4749264. Its totient is φ = 3166168.

The previous prime is 3957713. The next prime is 3957743. The reversal of 3957715 is 5177593.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3957715 - 2¹ = 3957713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3957713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395767 + ... + 395776.

It is an arithmetic number, because the mean of its divisors is an integer number (1187316).

Almost surely, 2^3957715 is an apocalyptic number.

3957715 is a deficient number, since it is larger than the sum of its proper divisors (791549).

3957715 is an equidigital number, since it uses as much as digits as its factorization.

3957715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791548.

The product of its digits is 33075, while the sum is 37.

The square root of 3957715 is about 1989.4006635165. The cubic root of 3957715 is about 158.1787620468.

The spelling of 3957715 in words is "three million, nine hundred fifty-seven thousand, seven hundred fifteen".