3946287 has 8 divisors (see below), whose sum is σ = 5328640. Its totient is φ = 2597400.

The previous prime is 3946259. The next prime is 3946289. The reversal of 3946287 is 7826493.

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

It is not a de Polignac number, because 3946287 - 2⁶ = 3946223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946289) 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, 8089 + ... + 8562.

It is an arithmetic number, because the mean of its divisors is an integer number (666080).

Almost surely, 2^3946287 is an apocalyptic number.

3946287 is a deficient number, since it is larger than the sum of its proper divisors (1382353).

3946287 is a wasteful number, since it uses less digits than its factorization.

3946287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16733.

The product of its digits is 72576, while the sum is 39.

The square root of 3946287 is about 1986.5263652919. The cubic root of 3946287 is about 158.0263669077.

The spelling of 3946287 in words is "three million, nine hundred forty-six thousand, two hundred eighty-seven".