82370666 has 24 divisors (see below), whose sum is σ = 144046980. Its totient is φ = 35223552.

The previous prime is 82370653. The next prime is 82370699. The reversal of 82370666 is 66607328.

It can be written as a sum of positive squares in 2 ways, for example, as 76195441 + 6175225 = 8729^2 + 2485^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74816 + ... + 75908.

Almost surely, 2^82370666 is an apocalyptic number.

82370666 is a deficient number, since it is larger than the sum of its proper divisors (61676314).

82370666 is a wasteful number, since it uses less digits than its factorization.

82370666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878 (or 1871 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 82370666 is about 9075.8286674000. The cubic root of 82370666 is about 435.1017791526.

The spelling of 82370666 in words is "eighty-two million, three hundred seventy thousand, six hundred sixty-six".