83507444 has 6 divisors (see below), whose sum is σ = 146138034. Its totient is φ = 41753720.

The previous prime is 83507441. The next prime is 83507491. The reversal of 83507444 is 44470538.

It can be written as a sum of positive squares in only one way, i.e., 83356900 + 150544 = 9130^2 + 388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83507441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10438427 + ... + 10438434.

It is an arithmetic number, because the mean of its divisors is an integer number (24356339).

Almost surely, 2^83507444 is an apocalyptic number.

It is an amenable number.

83507444 is a deficient number, since it is larger than the sum of its proper divisors (62630590).

83507444 is a wasteful number, since it uses less digits than its factorization.

83507444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20876865 (or 20876863 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 83507444 is about 9138.2407497286. The cubic root of 83507444 is about 437.0942201105.

The spelling of 83507444 in words is "eighty-three million, five hundred seven thousand, four hundred forty-four".