4018913 has 4 divisors (see below), whose sum is σ = 4024980. Its totient is φ = 4012848.

The previous prime is 4018901. The next prime is 4018921. The reversal of 4018913 is 3198104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 861184 + 3157729 = 928^2 + 1777^2 .

It is a cyclic number.

It is not a de Polignac number, because 4018913 - 2⁴ = 4018897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4068913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898 + ... + 3411.

It is an arithmetic number, because the mean of its divisors is an integer number (1006245).

Almost surely, 2^4018913 is an apocalyptic number.

It is an amenable number.

4018913 is a deficient number, since it is larger than the sum of its proper divisors (6067).

4018913 is an equidigital number, since it uses as much as digits as its factorization.

4018913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6066.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 4018913 is about 2004.7226740874. The cubic root of 4018913 is about 158.9898995469.

The spelling of 4018913 in words is "four million, eighteen thousand, nine hundred thirteen".