4013995 has 4 divisors (see below), whose sum is σ = 4816800. Its totient is φ = 3211192.

The previous prime is 4013993. The next prime is 4014001. The reversal of 4013995 is 5993104.

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

It is a cyclic number.

It is not a de Polignac number, because 4013995 - 2¹ = 4013993 is a prime.

It is a super-2 number, since 2×4013995² = 32224311720050, which contains 22 as substring.

4013995 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013993) 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, 401395 + ... + 401404.

It is an arithmetic number, because the mean of its divisors is an integer number (1204200).

Almost surely, 2^4013995 is an apocalyptic number.

4013995 is a deficient number, since it is larger than the sum of its proper divisors (802805).

4013995 is an equidigital number, since it uses as much as digits as its factorization.

4013995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802804.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 4013995 is about 2003.4956950291. The cubic root of 4013995 is about 158.9250203546.

The spelling of 4013995 in words is "four million, thirteen thousand, nine hundred ninety-five".