4015863 has 12 divisors (see below), whose sum is σ = 5910840. Its totient is φ = 2626416.

The previous prime is 4015841. The next prime is 4015873. The reversal of 4015863 is 3685104.

It is not a de Polignac number, because 4015863 - 2⁶ = 4015799 is a prime.

It is a super-2 number, since 2×4015863² = 32254311269538, which contains 22 as substring.

4015863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4015873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3733 + ... + 4686.

It is an arithmetic number, because the mean of its divisors is an integer number (492570).

Almost surely, 2^4015863 is an apocalyptic number.

4015863 is a deficient number, since it is larger than the sum of its proper divisors (1894977).

4015863 is a wasteful number, since it uses less digits than its factorization.

4015863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478 (or 8475 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 4015863 is about 2003.9618259837. The cubic root of 4015863 is about 158.9496696045.

The spelling of 4015863 in words is "four million, fifteen thousand, eight hundred sixty-three".