82042658 has 4 divisors (see below), whose sum is σ = 123063990. Its totient is φ = 41021328.

The previous prime is 82042657. The next prime is 82042661. The reversal of 82042658 is 85624028.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 81956809 + 85849 = 9053^2 + 293^2 .

It is not an unprimeable number, because it can be changed into a prime (82042651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20510663 + ... + 20510666.

Almost surely, 2^82042658 is an apocalyptic number.

82042658 is a deficient number, since it is larger than the sum of its proper divisors (41021332).

82042658 is a wasteful number, since it uses less digits than its factorization.

82042658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41021331.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 82042658 is about 9057.7402259062. The cubic root of 82042658 is about 434.5234716515.

The spelling of 82042658 in words is "eighty-two million, forty-two thousand, six hundred fifty-eight".