84797144 has 8 divisors (see below), whose sum is σ = 158994660. Its totient is φ = 42398568.

The previous prime is 84797129. The next prime is 84797149. The reversal of 84797144 is 44179748.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 84797095 and 84797104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84797149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5299814 + ... + 5299829.

Almost surely, 2^84797144 is an apocalyptic number.

It is an amenable number.

84797144 is a deficient number, since it is larger than the sum of its proper divisors (74197516).

84797144 is a wasteful number, since it uses less digits than its factorization.

84797144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10599649 (or 10599645 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 84797144 is about 9208.5364743807. The cubic root of 84797144 is about 439.3329147611.

The spelling of 84797144 in words is "eighty-four million, seven hundred ninety-seven thousand, one hundred forty-four".