3915287 has 4 divisors (see below), whose sum is σ = 4145616. Its totient is φ = 3684960.

The previous prime is 3915277. The next prime is 3915293. The reversal of 3915287 is 7825193.

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 3915287 - 2⁸ = 3915031 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 (3915257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115139 + ... + 115172.

It is an arithmetic number, because the mean of its divisors is an integer number (1036404).

Almost surely, 2^3915287 is an apocalyptic number.

3915287 is a deficient number, since it is larger than the sum of its proper divisors (230329).

3915287 is a wasteful number, since it uses less digits than its factorization.

3915287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230328.

The product of its digits is 15120, while the sum is 35.

The square root of 3915287 is about 1978.7084171247. The cubic root of 3915287 is about 157.6114873699.

The spelling of 3915287 in words is "three million, nine hundred fifteen thousand, two hundred eighty-seven".