80170429 has 2 divisors, whose sum is σ = 80170430. Its totient is φ = 80170428.

The previous prime is 80170423. The next prime is 80170523. The reversal of 80170429 is 92407108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67404100 + 12766329 = 8210^2 + 3573^2 .

It is a cyclic number.

It is not a de Polignac number, because 80170429 - 2³ = 80170421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80170429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80170421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40085214 + 40085215.

It is an arithmetic number, because the mean of its divisors is an integer number (40085215).

Almost surely, 2^80170429 is an apocalyptic number.

It is an amenable number.

80170429 is a deficient number, since it is larger than the sum of its proper divisors (1).

80170429 is an equidigital number, since it uses as much as digits as its factorization.

80170429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 80170429 is about 8953.7941119952. The cubic root of 80170429 is about 431.1927027706.

The spelling of 80170429 in words is "eighty million, one hundred seventy thousand, four hundred twenty-nine".