3947585 has 8 divisors (see below), whose sum is σ = 4784616. Its totient is φ = 3126400.

The previous prime is 3947579. The next prime is 3947591. The reversal of 3947585 is 5857493.

It is an interprime number because it is at equal distance from previous prime (3947579) and next prime (3947591).

It can be written as a sum of positive squares in 4 ways, for example, as 234256 + 3713329 = 484^2 + 1927^2 .

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

It is not a de Polignac number, because 3947585 - 2⁴ = 3947569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3404 + ... + 4413.

It is an arithmetic number, because the mean of its divisors is an integer number (598077).

Almost surely, 2^3947585 is an apocalyptic number.

It is an amenable number.

3947585 is a deficient number, since it is larger than the sum of its proper divisors (837031).

3947585 is a wasteful number, since it uses less digits than its factorization.

3947585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7923.

The product of its digits is 151200, while the sum is 41.

The square root of 3947585 is about 1986.8530393565. The cubic root of 3947585 is about 158.0436908495.

The spelling of 3947585 in words is "three million, nine hundred forty-seven thousand, five hundred eighty-five".