82711740 has 24 divisors (see below), whose sum is σ = 231593040. Its totient is φ = 22056448.

The previous prime is 82711729. The next prime is 82711753. The reversal of 82711740 is 4711728.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 82711698 and 82711707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689205 + ... + 689324.

It is an arithmetic number, because the mean of its divisors is an integer number (9649710).

Almost surely, 2^82711740 is an apocalyptic number.

It is an amenable number.

82711740 is an abundant number, since it is smaller than the sum of its proper divisors (148881300).

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

82711740 is a wasteful number, since it uses less digits than its factorization.

82711740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378541 (or 1378539 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 82711740 is about 9094.5994964044. The cubic root of 82711740 is about 435.7014972763.

It can be divided in two parts, 8271 and 1740, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 82711740 in words is "eighty-two million, seven hundred eleven thousand, seven hundred forty".