8407408 has 20 divisors (see below), whose sum is σ = 16338240. Its totient is φ = 4191104.

The previous prime is 8407391. The next prime is 8407409. The reversal of 8407408 is 8047048.

It is a self number, because there is not a number n which added to its sum of digits gives 8407408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8407409) 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, 7116 + ... + 8212.

It is an arithmetic number, because the mean of its divisors is an integer number (816912).

Almost surely, 2^8407408 is an apocalyptic number.

It is an amenable number.

8407408 is a deficient number, since it is larger than the sum of its proper divisors (7930832).

8407408 is a wasteful number, since it uses less digits than its factorization.

8407408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 8407408 is about 2899.5530690091. The cubic root of 8407408 is about 203.3390114572.

The spelling of 8407408 in words is "eight million, four hundred seven thousand, four hundred eight".