82813544 has 32 divisors (see below), whose sum is σ = 169741440. Its totient is φ = 37564800.

The previous prime is 82813537. The next prime is 82813553. The reversal of 82813544 is 44531828.

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, 79652 + ... + 80684.

It is an arithmetic number, because the mean of its divisors is an integer number (5304420).

Almost surely, 2^82813544 is an apocalyptic number.

It is an amenable number.

82813544 is an abundant number, since it is smaller than the sum of its proper divisors (86927896).

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

82813544 is a wasteful number, since it uses less digits than its factorization.

82813544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961 (or 1957 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 82813544 is about 9100.1947231914. The cubic root of 82813544 is about 435.8801819846.

The spelling of 82813544 in words is "eighty-two million, eight hundred thirteen thousand, five hundred forty-four".