83453444 has 6 divisors (see below), whose sum is σ = 146043534. Its totient is φ = 41726720.

The previous prime is 83453443. The next prime is 83453449. The reversal of 83453444 is 44435438.

It can be written as a sum of positive squares in only one way, i.e., 69089344 + 14364100 = 8312^2 + 3790^2 .

It is a super-2 number, since 2×83453444² = 13928954630922272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83453441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10431677 + ... + 10431684.

It is an arithmetic number, because the mean of its divisors is an integer number (24340589).

Almost surely, 2^83453444 is an apocalyptic number.

It is an amenable number.

83453444 is a deficient number, since it is larger than the sum of its proper divisors (62590090).

83453444 is a wasteful number, since it uses less digits than its factorization.

83453444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20863365 (or 20863363 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

The square root of 83453444 is about 9135.2856550849. The cubic root of 83453444 is about 436.9999842906. Note that the first 4 decimals are identical.

The spelling of 83453444 in words is "eighty-three million, four hundred fifty-three thousand, four hundred forty-four".