3947495 has 8 divisors (see below), whose sum is σ = 4747680. Its totient is φ = 3150880.

The previous prime is 3947491. The next prime is 3947501. The reversal of 3947495 is 5947493.

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

It is not a de Polignac number, because 3947495 - 2² = 3947491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3725 + ... + 4665.

It is an arithmetic number, because the mean of its divisors is an integer number (593460).

Almost surely, 2^3947495 is an apocalyptic number.

3947495 is a deficient number, since it is larger than the sum of its proper divisors (800185).

3947495 is an equidigital number, since it uses as much as digits as its factorization.

3947495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785.

The product of its digits is 136080, while the sum is 41.

The square root of 3947495 is about 1986.8303903454. The cubic root of 3947495 is about 158.0424897742.

The spelling of 3947495 in words is "three million, nine hundred forty-seven thousand, four hundred ninety-five".