82173652 has 24 divisors (see below), whose sum is σ = 158774112. Its totient is φ = 36900000.

The previous prime is 82173629. The next prime is 82173659. The reversal of 82173652 is 25637128.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82173659) 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, 7599 + ... + 14902.

It is an arithmetic number, because the mean of its divisors is an integer number (6615588).

Almost surely, 2^82173652 is an apocalyptic number.

It is an amenable number.

82173652 is a deficient number, since it is larger than the sum of its proper divisors (76600460).

82173652 is a wasteful number, since it uses less digits than its factorization.

82173652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22599 (or 22597 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 82173652 is about 9064.9683948704. The cubic root of 82173652 is about 434.7546103542.

It can be divided in two parts, 8217 and 3652, that multiplied together give a square (30008484 = 5478²).

The spelling of 82173652 in words is "eighty-two million, one hundred seventy-three thousand, six hundred fifty-two".