3901563 has 6 divisors (see below), whose sum is σ = 5635604. Its totient is φ = 2601036.

The previous prime is 3901561. The next prime is 3901571. The reversal of 3901563 is 3651093.

It is not a de Polignac number, because 3901563 - 2¹ = 3901561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3901561) 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 in 5 ways as a sum of consecutive naturals, for example, 216745 + ... + 216762.

Almost surely, 2^3901563 is an apocalyptic number.

3901563 is a deficient number, since it is larger than the sum of its proper divisors (1734041).

3901563 is a wasteful number, since it uses less digits than its factorization.

3901563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433513 (or 433510 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 3901563 is about 1975.2374540799. The cubic root of 3901563 is about 157.4271166941.

It can be divided in two parts, 390 and 1563, that added together give a triangular number (1953 = T₆₂).

The spelling of 3901563 in words is "three million, nine hundred one thousand, five hundred sixty-three".