8404469 has 2 divisors, whose sum is σ = 8404470. Its totient is φ = 8404468.

The previous prime is 8404463. The next prime is 8404489. The reversal of 8404469 is 9644048.

8404469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 508369 = 2810^2 + 713^2 .

It is a cyclic number.

It is not a de Polignac number, because 8404469 - 2¹² = 8400373 is a prime.

It is a super-2 number, since 2×8404469² = 141270198343922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8404463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4202234 + 4202235.

It is an arithmetic number, because the mean of its divisors is an integer number (4202235).

Almost surely, 2^8404469 is an apocalyptic number.

It is an amenable number.

8404469 is a deficient number, since it is larger than the sum of its proper divisors (1).

8404469 is an equidigital number, since it uses as much as digits as its factorization.

8404469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 8404469 is about 2899.0462224670. The cubic root of 8404469 is about 203.3153147759.

The spelling of 8404469 in words is "eight million, four hundred four thousand, four hundred sixty-nine".