80842658 has 8 divisors (see below), whose sum is σ = 130592028. Its totient is φ = 37311984.

The previous prime is 80842651. The next prime is 80842661. The reversal of 80842658 is 85624808.

It can be written as a sum of positive squares in 2 ways, for example, as 79691329 + 1151329 = 8927^2 + 1073^2 .

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

It is not an unprimeable number, because it can be changed into a prime (80842651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554641 + ... + 1554692.

Almost surely, 2^80842658 is an apocalyptic number.

80842658 is a deficient number, since it is larger than the sum of its proper divisors (49749370).

80842658 is a wasteful number, since it uses less digits than its factorization.

80842658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109348.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 80842658 is about 8991.2545287073. The cubic root of 80842658 is about 432.3945334070.

The spelling of 80842658 in words is "eighty million, eight hundred forty-two thousand, six hundred fifty-eight".