8436404 has 6 divisors (see below), whose sum is σ = 14763714. Its totient is φ = 4218200.

The previous prime is 8436401. The next prime is 8436409. The reversal of 8436404 is 4046348.

It can be written as a sum of positive squares in only one way, i.e., 8133904 + 302500 = 2852^2 + 550^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8436401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054547 + ... + 1054554.

It is an arithmetic number, because the mean of its divisors is an integer number (2460619).

Almost surely, 2^8436404 is an apocalyptic number.

It is an amenable number.

8436404 is a deficient number, since it is larger than the sum of its proper divisors (6327310).

8436404 is a wasteful number, since it uses less digits than its factorization.

8436404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109105 (or 2109103 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 8436404 is about 2904.5488462066. The cubic root of 8436404 is about 203.5725060430.

The spelling of 8436404 in words is "eight million, four hundred thirty-six thousand, four hundred four".