80763156 has 60 divisors (see below), whose sum is σ = 216869268. Its totient is φ = 26189568.

The previous prime is 80763131. The next prime is 80763161. The reversal of 80763156 is 65136708.

It can be written as a sum of positive squares in 2 ways, for example, as 58522500 + 22240656 = 7650^2 + 4716^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80763156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8620 + ... + 15356.

Almost surely, 2^80763156 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 80763156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108434634).

80763156 is an abundant number, since it is smaller than the sum of its proper divisors (136106112).

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

80763156 is a wasteful number, since it uses less digits than its factorization.

80763156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790 (or 6779 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 80763156 is about 8986.8323674140. The cubic root of 80763156 is about 432.2527456185.

The spelling of 80763156 in words is "eighty million, seven hundred sixty-three thousand, one hundred fifty-six".