8404349 has 4 divisors (see below), whose sum is σ = 8410464. Its totient is φ = 8398236.

The previous prime is 8404343. The next prime is 8404351. The reversal of 8404349 is 9434048.

8404349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8404349 - 2¹² = 8400253 is a prime.

It is a super-2 number, since 2×8404349² = 141266164227602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404343) 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, 74 + ... + 4100.

It is an arithmetic number, because the mean of its divisors is an integer number (2102616).

Almost surely, 2^8404349 is an apocalyptic number.

It is an amenable number.

8404349 is a deficient number, since it is larger than the sum of its proper divisors (6115).

8404349 is a wasteful number, since it uses less digits than its factorization.

8404349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6114.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 8404349 is about 2899.0255259311. The cubic root of 8404349 is about 203.3143471179.

The spelling of 8404349 in words is "eight million, four hundred four thousand, three hundred forty-nine".