82447256 has 8 divisors (see below), whose sum is σ = 154588620. Its totient is φ = 41223624.

The previous prime is 82447241. The next prime is 82447301. The reversal of 82447256 is 65274428.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5152946 + ... + 5152961.

Almost surely, 2^82447256 is an apocalyptic number.

It is an amenable number.

82447256 is a deficient number, since it is larger than the sum of its proper divisors (72141364).

82447256 is a wasteful number, since it uses less digits than its factorization.

82447256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305913 (or 10305909 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 82447256 is about 9080.0471364415. The cubic root of 82447256 is about 435.2365930114.

The spelling of 82447256 in words is "eighty-two million, four hundred forty-seven thousand, two hundred fifty-six".