3947315 has 8 divisors (see below), whose sum is σ = 5015520. Its totient is φ = 2972032.

The previous prime is 3947311. The next prime is 3947327. The reversal of 3947315 is 5137493.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3947315 - 2² = 3947311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3947311) 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 7 ways as a sum of consecutive naturals, for example, 23135 + ... + 23304.

It is an arithmetic number, because the mean of its divisors is an integer number (626940).

Almost surely, 2^3947315 is an apocalyptic number.

3947315 is a deficient number, since it is larger than the sum of its proper divisors (1068205).

3947315 is a wasteful number, since it uses less digits than its factorization.

3947315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46461.

The product of its digits is 11340, while the sum is 32.

The square root of 3947315 is about 1986.7850915487. The cubic root of 3947315 is about 158.0400875689.

The spelling of 3947315 in words is "three million, nine hundred forty-seven thousand, three hundred fifteen".