82890285 has 8 divisors (see below), whose sum is σ = 132624480. Its totient is φ = 44208144.

The previous prime is 82890257. The next prime is 82890329. The reversal of 82890285 is 58209828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82890285 - 2⁸ = 82890029 is a prime.

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, 2762995 + ... + 2763024.

It is an arithmetic number, because the mean of its divisors is an integer number (16578060).

Almost surely, 2^82890285 is an apocalyptic number.

It is an amenable number.

82890285 is a deficient number, since it is larger than the sum of its proper divisors (49734195).

82890285 is a wasteful number, since it uses less digits than its factorization.

82890285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526027.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 82890285 is about 9104.4101950648. The cubic root of 82890285 is about 436.0147797504.

The spelling of 82890285 in words is "eighty-two million, eight hundred ninety thousand, two hundred eighty-five".