3915863 has 8 divisors (see below), whose sum is σ = 4538880. Its totient is φ = 3308760.

The previous prime is 3915853. The next prime is 3915887. The reversal of 3915863 is 3685193.

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

It is not a de Polignac number, because 3915863 - 2¹² = 3911767 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 (3915803) 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, 3443 + ... + 4436.

It is an arithmetic number, because the mean of its divisors is an integer number (567360).

Almost surely, 2^3915863 is an apocalyptic number.

3915863 is a deficient number, since it is larger than the sum of its proper divisors (623017).

3915863 is an equidigital number, since it uses as much as digits as its factorization.

3915863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7957.

The product of its digits is 19440, while the sum is 35.

The square root of 3915863 is about 1978.8539612614. The cubic root of 3915863 is about 157.6192160298.

The spelling of 3915863 in words is "three million, nine hundred fifteen thousand, eight hundred sixty-three".