82136670 has 192 divisors, whose sum is σ = 260817408. Its totient is φ = 16070400.

The previous prime is 82136647. The next prime is 82136711. The reversal of 82136670 is 7663128.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2219892 + ... + 2219928.

It is an arithmetic number, because the mean of its divisors is an integer number (1358424).

Almost surely, 2^82136670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82136670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130408704).

82136670 is an abundant number, since it is smaller than the sum of its proper divisors (178680738).

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

82136670 is a wasteful number, since it uses less digits than its factorization.

82136670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 82136670 is about 9062.9283347051. The cubic root of 82136670 is about 434.6893805748.

Adding to 82136670 its reverse (7663128), we get a palindrome (89799798).

The spelling of 82136670 in words is "eighty-two million, one hundred thirty-six thousand, six hundred seventy".