82866770 has 16 divisors (see below), whose sum is σ = 170468928. Its totient is φ = 28411440.

The previous prime is 82866767. The next prime is 82866787. The reversal of 82866770 is 7766828.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591836 + ... + 591975.

It is an arithmetic number, because the mean of its divisors is an integer number (10654308).

Almost surely, 2^82866770 is an apocalyptic number.

82866770 is an abundant number, since it is smaller than the sum of its proper divisors (87602158).

82866770 is a wasteful number, since it uses less digits than its factorization.

82866770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183825.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 82866770 is about 9103.1186963590. The cubic root of 82866770 is about 435.9735450941.

The spelling of 82866770 in words is "eighty-two million, eight hundred sixty-six thousand, seven hundred seventy".