8722408 has 16 divisors (see below), whose sum is σ = 16882560. Its totient is φ = 4220400.

The previous prime is 8722393. The next prime is 8722409. The reversal of 8722408 is 8042278.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 8722408.

It is not an unprimeable number, because it can be changed into a prime (8722409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17338 + ... + 17833.

It is an arithmetic number, because the mean of its divisors is an integer number (1055160).

Almost surely, 2^8722408 is an apocalyptic number.

It is an amenable number.

8722408 is a deficient number, since it is larger than the sum of its proper divisors (8160152).

8722408 is a wasteful number, since it uses less digits than its factorization.

8722408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35208 (or 35204 counting only the distinct ones).

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

The square root of 8722408 is about 2953.3723097503. The cubic root of 8722408 is about 205.8474378631.

The spelling of 8722408 in words is "eight million, seven hundred twenty-two thousand, four hundred eight".