83904408 has 96 divisors (see below), whose sum is σ = 261075360. Its totient is φ = 23846400.

The previous prime is 83904407. The next prime is 83904439. The reversal of 83904408 is 80440938.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83904407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139308 + ... + 139908.

It is an arithmetic number, because the mean of its divisors is an integer number (2719535).

Almost surely, 2^83904408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83904408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130537680).

83904408 is an abundant number, since it is smaller than the sum of its proper divisors (177170952).

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

83904408 is a wasteful number, since it uses less digits than its factorization.

83904408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 83904408 is about 9159.9349342667. The cubic root of 83904408 is about 437.7857211710.

The spelling of 83904408 in words is "eighty-three million, nine hundred four thousand, four hundred eight".