80700029 has 2 divisors, whose sum is σ = 80700030. Its totient is φ = 80700028.

The previous prime is 80700017. The next prime is 80700083. The reversal of 80700029 is 92000708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80102500 + 597529 = 8950^2 + 773^2 .

It is a cyclic number.

It is not a de Polignac number, because 80700029 - 2¹⁶ = 80634493 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80699980 and 80700007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80700229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40350014 + 40350015.

It is an arithmetic number, because the mean of its divisors is an integer number (40350015).

Almost surely, 2^80700029 is an apocalyptic number.

It is an amenable number.

80700029 is a deficient number, since it is larger than the sum of its proper divisors (1).

80700029 is an equidigital number, since it uses as much as digits as its factorization.

80700029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 80700029 is about 8983.3194866931. The cubic root of 80700029 is about 432.1400955236.

The spelling of 80700029 in words is "eighty million, seven hundred thousand, twenty-nine".