80198929 has 2 divisors, whose sum is σ = 80198930. Its totient is φ = 80198928.

The previous prime is 80198903. The next prime is 80198941. The reversal of 80198929 is 92989108.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68310225 + 11888704 = 8265^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 80198929 - 2⁷ = 80198801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80198959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40099464 + 40099465.

It is an arithmetic number, because the mean of its divisors is an integer number (40099465).

Almost surely, 2^80198929 is an apocalyptic number.

It is an amenable number.

80198929 is a deficient number, since it is larger than the sum of its proper divisors (1).

80198929 is an equidigital number, since it uses as much as digits as its factorization.

80198929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 80198929 is about 8955.3854746739. The cubic root of 80198929 is about 431.2437919991.

The spelling of 80198929 in words is "eighty million, one hundred ninety-eight thousand, nine hundred twenty-nine".