82851485 has 4 divisors (see below), whose sum is σ = 99421788. Its totient is φ = 66281184.

The previous prime is 82851479. The next prime is 82851493. The reversal of 82851485 is 58415828.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43375396 + 39476089 = 6586^2 + 6283^2 .

It is a cyclic number.

It is not a de Polignac number, because 82851485 - 2⁴ = 82851469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8285144 + ... + 8285153.

It is an arithmetic number, because the mean of its divisors is an integer number (24855447).

Almost surely, 2^82851485 is an apocalyptic number.

It is an amenable number.

82851485 is a deficient number, since it is larger than the sum of its proper divisors (16570303).

82851485 is a wasteful number, since it uses less digits than its factorization.

82851485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16570302.

The product of its digits is 102400, while the sum is 41.

The square root of 82851485 is about 9102.2791102009. The cubic root of 82851485 is about 435.9467379457.

The spelling of 82851485 in words is "eighty-two million, eight hundred fifty-one thousand, four hundred eighty-five".