83247444 has 36 divisors (see below), whose sum is σ = 240493344. Its totient is φ = 23784912.

The previous prime is 83247403. The next prime is 83247449. The reversal of 83247444 is 44474238.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 83247399 and 83247408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83247449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164922 + ... + 165425.

Almost surely, 2^83247444 is an apocalyptic number.

83247444 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

83247444 is an abundant number, since it is smaller than the sum of its proper divisors (157245900).

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

83247444 is a wasteful number, since it uses less digits than its factorization.

83247444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330364 (or 330359 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 83247444 is about 9124.0037264350. The cubic root of 83247444 is about 436.6401182961.

The spelling of 83247444 in words is "eighty-three million, two hundred forty-seven thousand, four hundred forty-four".