80710506 has 56 divisors (see below), whose sum is σ = 183086244. Its totient is φ = 26671680.

The previous prime is 80710481. The next prime is 80710507. The reversal of 80710506 is 60501708.

It can be written as a sum of positive squares in 2 ways, for example, as 67815225 + 12895281 = 8235^2 + 3591^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 80710506.

It is not an unprimeable number, because it can be changed into a prime (80710507) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 287086 + ... + 287366.

Almost surely, 2^80710506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80710506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91543122).

80710506 is an abundant number, since it is smaller than the sum of its proper divisors (102375738).

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

80710506 is a wasteful number, since it uses less digits than its factorization.

80710506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 80710506 is about 8983.9026041025. The cubic root of 80710506 is about 432.1587957889.

The spelling of 80710506 in words is "eighty million, seven hundred ten thousand, five hundred six".