80827613 has 2 divisors, whose sum is σ = 80827614. Its totient is φ = 80827612.

The previous prime is 80827609. The next prime is 80827619. The reversal of 80827613 is 31672808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44382244 + 36445369 = 6662^2 + 6037^2 .

It is a cyclic number.

It is not a de Polignac number, because 80827613 - 2² = 80827609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80827619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40413806 + 40413807.

It is an arithmetic number, because the mean of its divisors is an integer number (40413807).

Almost surely, 2^80827613 is an apocalyptic number.

It is an amenable number.

80827613 is a deficient number, since it is larger than the sum of its proper divisors (1).

80827613 is an equidigital number, since it uses as much as digits as its factorization.

80827613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 80827613 is about 8990.4178434598. The cubic root of 80827613 is about 432.3677085453.

The spelling of 80827613 in words is "eighty million, eight hundred twenty-seven thousand, six hundred thirteen".