82471670 has 16 divisors (see below), whose sum is σ = 149434848. Its totient is φ = 32769600.

The previous prime is 82471639. The next prime is 82471673. The reversal of 82471670 is 7617428.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82471670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82471673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25799 + ... + 28818.

It is an arithmetic number, because the mean of its divisors is an integer number (9339678).

Almost surely, 2^82471670 is an apocalyptic number.

82471670 is a deficient number, since it is larger than the sum of its proper divisors (66963178).

82471670 is a wasteful number, since it uses less digits than its factorization.

82471670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54775.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 82471670 is about 9081.3914132142. The cubic root of 82471670 is about 435.2795490297.

The spelling of 82471670 in words is "eighty-two million, four hundred seventy-one thousand, six hundred seventy".