80763956 has 72 divisors (see below), whose sum is σ = 183332520. Its totient is φ = 30820608.

The previous prime is 80763941. The next prime is 80763967. The reversal of 80763956 is 65936708.

It can be written as a sum of positive squares in 4 ways, for example, as 21473956 + 59290000 = 4634^2 + 7700^2 .

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 73346 + ... + 74438.

It is an arithmetic number, because the mean of its divisors is an integer number (2546285).

Almost surely, 2^80763956 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 80763956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91666260).

80763956 is an abundant number, since it is smaller than the sum of its proper divisors (102568564).

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

80763956 is a wasteful number, since it uses less digits than its factorization.

80763956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 80763956 is about 8986.8768768688. The cubic root of 80763956 is about 432.2541728413.

The spelling of 80763956 in words is "eighty million, seven hundred sixty-three thousand, nine hundred fifty-six".