8409372 has 12 divisors (see below), whose sum is σ = 19621896. Its totient is φ = 2803120.

The previous prime is 8409353. The next prime is 8409377. The reversal of 8409372 is 2739048.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8409377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350379 + ... + 350402.

It is an arithmetic number, because the mean of its divisors is an integer number (1635158).

Almost surely, 2^8409372 is an apocalyptic number.

It is an amenable number.

8409372 is an abundant number, since it is smaller than the sum of its proper divisors (11212524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8409372 is a wasteful number, since it uses less digits than its factorization.

8409372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700788 (or 700786 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 8409372 is about 2899.8917221165. The cubic root of 8409372 is about 203.3548437932.

The spelling of 8409372 in words is "eight million, four hundred nine thousand, three hundred seventy-two".