82471736 has 8 divisors (see below), whose sum is σ = 154634520. Its totient is φ = 41235864.

The previous prime is 82471729. The next prime is 82471747. The reversal of 82471736 is 63717428.

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

It is a self number, because there is not a number n which added to its sum of digits gives 82471736.

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, 5154476 + ... + 5154491.

It is an arithmetic number, because the mean of its divisors is an integer number (19329315).

Almost surely, 2^82471736 is an apocalyptic number.

It is an amenable number.

82471736 is a deficient number, since it is larger than the sum of its proper divisors (72162784).

82471736 is a wasteful number, since it uses less digits than its factorization.

82471736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10308973 (or 10308969 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 82471736 is about 9081.3950470178. The cubic root of 82471736 is about 435.2796651441.

The spelling of 82471736 in words is "eighty-two million, four hundred seventy-one thousand, seven hundred thirty-six".