80361858 has 16 divisors (see below), whose sum is σ = 165908736. Its totient is φ = 25923120.

The previous prime is 80361857. The next prime is 80361893. The reversal of 80361858 is 85816308.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80361851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215841 + ... + 216212.

It is an arithmetic number, because the mean of its divisors is an integer number (10369296).

Almost surely, 2^80361858 is an apocalyptic number.

80361858 is an abundant number, since it is smaller than the sum of its proper divisors (85546878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80361858 is a wasteful number, since it uses less digits than its factorization.

80361858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432089.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 80361858 is about 8964.4775642533. The cubic root of 80361858 is about 431.5356271217.

The spelling of 80361858 in words is "eighty million, three hundred sixty-one thousand, eight hundred fifty-eight".