82684970 has 8 divisors (see below), whose sum is σ = 148832964. Its totient is φ = 33073984.

The previous prime is 82684969. The next prime is 82684993. The reversal of 82684970 is 7948628.

It can be written as a sum of positive squares in 2 ways, for example, as 67947049 + 14737921 = 8243^2 + 3839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4134239 + ... + 4134258.

Almost surely, 2^82684970 is an apocalyptic number.

82684970 is a deficient number, since it is larger than the sum of its proper divisors (66147994).

82684970 is a wasteful number, since it uses less digits than its factorization.

82684970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8268504.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 82684970 is about 9093.1276247505. The cubic root of 82684970 is about 435.6544866680.

The spelling of 82684970 in words is "eighty-two million, six hundred eighty-four thousand, nine hundred seventy".