80707829 has 2 divisors, whose sum is σ = 80707830. Its totient is φ = 80707828.

The previous prime is 80707799. The next prime is 80707831. The reversal of 80707829 is 92870708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58599025 + 22108804 = 7655^2 + 4702^2 .

It is a cyclic number.

It is not a de Polignac number, because 80707829 - 2¹⁶ = 80642293 is a prime.

Together with 80707831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80707889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40353914 + 40353915.

It is an arithmetic number, because the mean of its divisors is an integer number (40353915).

Almost surely, 2^80707829 is an apocalyptic number.

It is an amenable number.

80707829 is a deficient number, since it is larger than the sum of its proper divisors (1).

80707829 is an equidigital number, since it uses as much as digits as its factorization.

80707829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 80707829 is about 8983.7536141637. The cubic root of 80707829 is about 432.1540177993.

The spelling of 80707829 in words is "eighty million, seven hundred seven thousand, eight hundred twenty-nine".