82241985 has 16 divisors (see below), whose sum is σ = 150385536. Its totient is φ = 37596288.

The previous prime is 82241981. The next prime is 82241987. The reversal of 82241985 is 58914228.

It is not a de Polignac number, because 82241985 - 2² = 82241981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82241981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391524 + ... + 391733.

It is an arithmetic number, because the mean of its divisors is an integer number (9399096).

Almost surely, 2^82241985 is an apocalyptic number.

It is an amenable number.

82241985 is a deficient number, since it is larger than the sum of its proper divisors (68143551).

82241985 is a wasteful number, since it uses less digits than its factorization.

82241985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783272.

The product of its digits is 46080, while the sum is 39.

The square root of 82241985 is about 9068.7366815891. The cubic root of 82241985 is about 434.8750863425.

The spelling of 82241985 in words is "eighty-two million, two hundred forty-one thousand, nine hundred eighty-five".