80891862 has 16 divisors (see below), whose sum is σ = 164063232. Its totient is φ = 26584040.

The previous prime is 80891827. The next prime is 80891869. The reversal of 80891862 is 26819808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80891869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94518 + ... + 95369.

It is an arithmetic number, because the mean of its divisors is an integer number (10253952).

Almost surely, 2^80891862 is an apocalyptic number.

80891862 is an abundant number, since it is smaller than the sum of its proper divisors (83171370).

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

80891862 is a wasteful number, since it uses less digits than its factorization.

80891862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189963.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 80891862 is about 8993.9903268794. The cubic root of 80891862 is about 432.4822396841.

The spelling of 80891862 in words is "eighty million, eight hundred ninety-one thousand, eight hundred sixty-two".