83409544 has 32 divisors (see below), whose sum is σ = 169084800. Its totient is φ = 38439360.

The previous prime is 83409541. The next prime is 83409583. The reversal of 83409544 is 44590438.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (83409541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1792 + ... + 13039.

It is an arithmetic number, because the mean of its divisors is an integer number (5283900).

Almost surely, 2^83409544 is an apocalyptic number.

It is an amenable number.

83409544 is an abundant number, since it is smaller than the sum of its proper divisors (85675256).

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

83409544 is a wasteful number, since it uses less digits than its factorization.

83409544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14893 (or 14889 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 83409544 is about 9132.8825679519. The cubic root of 83409544 is about 436.9233440975.

The spelling of 83409544 in words is "eighty-three million, four hundred nine thousand, five hundred forty-four".