404147 has 4 divisors (see below), whose sum is σ = 417216. Its totient is φ = 391080.

The previous prime is 404123. The next prime is 404161. The reversal of 404147 is 741404.

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 404147 - 2¹² = 400051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404167) 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, 6488 + ... + 6549.

It is an arithmetic number, because the mean of its divisors is an integer number (104304).

2⁴⁰⁴¹⁴⁷ is an apocalyptic number.

404147 is a deficient number, since it is larger than the sum of its proper divisors (13069).

404147 is a wasteful number, since it uses less digits than its factorization.

404147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13068.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 404147 is about 635.7255697233. The cubic root of 404147 is about 73.9343830316.

The spelling of 404147 in words is "four hundred four thousand, one hundred forty-seven", and thus it is an iban number.