798149543 has 2 divisors, whose sum is σ = 798149544. Its totient is φ = 798149542.

The previous prime is 798149509. The next prime is 798149567. The reversal of 798149543 is 345941897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 798149543 - 2¹⁴ = 798133159 is a prime.

It is a super-2 number, since 2×798149543² = 1274085385982217698, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 798149491 and 798149500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798143543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399074771 + 399074772.

It is an arithmetic number, because the mean of its divisors is an integer number (399074772).

Almost surely, 2^798149543 is an apocalyptic number.

798149543 is a deficient number, since it is larger than the sum of its proper divisors (1).

798149543 is an equidigital number, since it uses as much as digits as its factorization.

798149543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 798149543 is about 28251.5405420660. The cubic root of 798149543 is about 927.6014591025.

The spelling of 798149543 in words is "seven hundred ninety-eight million, one hundred forty-nine thousand, five hundred forty-three".