80282709 has 12 divisors (see below), whose sum is σ = 124884396. Its totient is φ = 49404672.

The previous prime is 80282707. The next prime is 80282747. The reversal of 80282709 is 90728208.

It can be written as a sum of positive squares in 2 ways, for example, as 7128900 + 73153809 = 2670^2 + 8553^2 .

It is not a de Polignac number, because 80282709 - 2¹ = 80282707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80282707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342972 + ... + 343205.

It is an arithmetic number, because the mean of its divisors is an integer number (10407033).

Almost surely, 2^80282709 is an apocalyptic number.

It is an amenable number.

80282709 is a deficient number, since it is larger than the sum of its proper divisors (44601687).

80282709 is a wasteful number, since it uses less digits than its factorization.

80282709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686196 (or 686193 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 80282709 is about 8960.0618859470. The cubic root of 80282709 is about 431.3939063530.

The spelling of 80282709 in words is "eighty million, two hundred eighty-two thousand, seven hundred nine".