82287090 has 48 divisors (see below), whose sum is σ = 221876928. Its totient is φ = 21942576.

The previous prime is 82287071. The next prime is 82287091. The reversal of 82287090 is 9078228.

It is not an unprimeable number, because it can be changed into a prime (82287091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14502 + ... + 19361.

It is an arithmetic number, because the mean of its divisors is an integer number (4622436).

Almost surely, 2^82287090 is an apocalyptic number.

82287090 is an abundant number, since it is smaller than the sum of its proper divisors (139589838).

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

82287090 is a wasteful number, since it uses less digits than its factorization.

82287090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33885 (or 33873 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 82287090 is about 9071.2231810269. The cubic root of 82287090 is about 434.9545731397.

The spelling of 82287090 in words is "eighty-two million, two hundred eighty-seven thousand, ninety".