3918563 has 8 divisors (see below), whose sum is σ = 4303920. Its totient is φ = 3538080.

The previous prime is 3918557. The next prime is 3918569. The reversal of 3918563 is 3658193.

It is an interprime number because it is at equal distance from previous prime (3918557) and next prime (3918569).

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

It is a cyclic number.

It is not a de Polignac number, because 3918563 - 2¹² = 3914467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3918569) 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, 593 + ... + 2861.

It is an arithmetic number, because the mean of its divisors is an integer number (537990).

Almost surely, 2^3918563 is an apocalyptic number.

3918563 is a deficient number, since it is larger than the sum of its proper divisors (385357).

3918563 is a wasteful number, since it uses less digits than its factorization.

3918563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437.

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

The square root of 3918563 is about 1979.5360567567. The cubic root of 3918563 is about 157.6554340239.

The spelling of 3918563 in words is "three million, nine hundred eighteen thousand, five hundred sixty-three".