80861248 has 56 divisors (see below), whose sum is σ = 182998872. Its totient is φ = 35119104.

The previous prime is 80861239. The next prime is 80861273. The reversal of 80861248 is 84216808.

It can be written as a sum of positive squares in 4 ways, for example, as 11505664 + 69355584 = 3392^2 + 8328^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11286 + ... + 17002.

It is an arithmetic number, because the mean of its divisors is an integer number (3267837).

Almost surely, 2^80861248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80861248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91499436).

80861248 is an abundant number, since it is smaller than the sum of its proper divisors (102137624).

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

80861248 is a wasteful number, since it uses less digits than its factorization.

80861248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759 (or 5749 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 80861248 is about 8992.2882516076. The cubic root of 80861248 is about 432.4276743193.

It can be divided in two parts, 80 and 861248, that added together give a triangular number (861328 = T₁₃₁₂).

The spelling of 80861248 in words is "eighty million, eight hundred sixty-one thousand, two hundred forty-eight".