798620149 has 2 divisors, whose sum is σ = 798620150. Its totient is φ = 798620148.

The previous prime is 798620129. The next prime is 798620167. The reversal of 798620149 is 941026897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 771839524 + 26780625 = 27782^2 + 5175^2 .

It is a cyclic number.

It is not a de Polignac number, because 798620149 - 2¹⁷ = 798489077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 798620099 and 798620108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798620129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399310074 + 399310075.

It is an arithmetic number, because the mean of its divisors is an integer number (399310075).

Almost surely, 2^798620149 is an apocalyptic number.

It is an amenable number.

798620149 is a deficient number, since it is larger than the sum of its proper divisors (1).

798620149 is an equidigital number, since it uses as much as digits as its factorization.

798620149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 798620149 is about 28259.8681702516. The cubic root of 798620149 is about 927.7837344866.

The spelling of 798620149 in words is "seven hundred ninety-eight million, six hundred twenty thousand, one hundred forty-nine".