3915887 has 2 divisors, whose sum is σ = 3915888. Its totient is φ = 3915886.

The previous prime is 3915853. The next prime is 3915893. The reversal of 3915887 is 7885193.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7885193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3915887 - 2⁶ = 3915823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3915817) 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 as a sum of consecutive naturals, namely, 1957943 + 1957944.

It is an arithmetic number, because the mean of its divisors is an integer number (1957944).

Almost surely, 2^3915887 is an apocalyptic number.

3915887 is a deficient number, since it is larger than the sum of its proper divisors (1).

3915887 is an equidigital number, since it uses as much as digits as its factorization.

3915887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 3915887 is about 1978.8600253681. The cubic root of 3915887 is about 157.6195380408.

The spelling of 3915887 in words is "three million, nine hundred fifteen thousand, eight hundred eighty-seven".