82984261 has 4 divisors (see below), whose sum is σ = 83018412. Its totient is φ = 82950112.

The previous prime is 82984243. The next prime is 82984289. The reversal of 82984261 is 16248928.

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 11902500 + 71081761 = 3450^2 + 8431^2 .

It is a cyclic number.

It is not a de Polignac number, because 82984261 - 2⁷ = 82984133 is a prime.

It is a super-2 number, since 2×82984261² = 13772775147432242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82984201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13126 + ... + 18391.

It is an arithmetic number, because the mean of its divisors is an integer number (20754603).

Almost surely, 2^82984261 is an apocalyptic number.

It is an amenable number.

82984261 is a deficient number, since it is larger than the sum of its proper divisors (34151).

82984261 is a wasteful number, since it uses less digits than its factorization.

82984261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34150.

The product of its digits is 55296, while the sum is 40.

The square root of 82984261 is about 9109.5697483471. The cubic root of 82984261 is about 436.1794932618.

The spelling of 82984261 in words is "eighty-two million, nine hundred eighty-four thousand, two hundred sixty-one".