82018485 has 12 divisors (see below), whose sum is σ = 142165452. Its totient is φ = 43743168.

The previous prime is 82018477. The next prime is 82018499. The reversal of 82018485 is 58481028.

It can be written as a sum of positive squares in 2 ways, for example, as 52403121 + 29615364 = 7239^2 + 5442^2 .

It is not a de Polignac number, because 82018485 - 2³ = 82018477 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911272 + ... + 911361.

It is an arithmetic number, because the mean of its divisors is an integer number (11847121).

Almost surely, 2^82018485 is an apocalyptic number.

It is an amenable number.

82018485 is a deficient number, since it is larger than the sum of its proper divisors (60146967).

82018485 is a wasteful number, since it uses less digits than its factorization.

82018485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822644 (or 1822641 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 82018485 is about 9056.4057440024. The cubic root of 82018485 is about 434.4807915470.

The spelling of 82018485 in words is "eighty-two million, eighteen thousand, four hundred eighty-five".