82998985 has 16 divisors (see below), whose sum is σ = 100900800. Its totient is φ = 65537856.

The previous prime is 82998983. The next prime is 82998991. The reversal of 82998985 is 58989928.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 82998985 - 2¹ = 82998983 is a prime.

It is a super-2 number, since 2×82998985² = 13777663022060450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82998983) 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, 213171 + ... + 213559.

It is an arithmetic number, because the mean of its divisors is an integer number (6306300).

Almost surely, 2^82998985 is an apocalyptic number.

It is an amenable number.

82998985 is a deficient number, since it is larger than the sum of its proper divisors (17901815).

82998985 is a wasteful number, since it uses less digits than its factorization.

82998985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its digits is 3732480, while the sum is 58.

The square root of 82998985 is about 9110.3778736120. The cubic root of 82998985 is about 436.2052890251.

The spelling of 82998985 in words is "eighty-two million, nine hundred ninety-eight thousand, nine hundred eighty-five".