403879369 has 4 divisors (see below), whose sum is σ = 405415296. Its totient is φ = 402343444.

The previous prime is 403879361. The next prime is 403879381. The reversal of 403879369 is 963978304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403879369 - 2³ = 403879361 is a prime.

It is a super-2 number, since 2×403879369² = 326237089407676322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403879361) 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 3 ways as a sum of consecutive naturals, for example, 767569 + ... + 768094.

It is an arithmetic number, because the mean of its divisors is an integer number (101353824).

Almost surely, 2^403879369 is an apocalyptic number.

It is an amenable number.

403879369 is a deficient number, since it is larger than the sum of its proper divisors (1535927).

403879369 is a wasteful number, since it uses less digits than its factorization.

403879369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535926.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 403879369 is about 20096.7502099220. The cubic root of 403879369 is about 739.1805934880.

The spelling of 403879369 in words is "four hundred three million, eight hundred seventy-nine thousand, three hundred sixty-nine".