798723187 has 2 divisors, whose sum is σ = 798723188. Its totient is φ = 798723186.

The previous prime is 798723161. The next prime is 798723253. The reversal of 798723187 is 781327897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 798723187 - 2⁷ = 798723059 is a prime.

It is not a weakly prime, because it can be changed into another prime (798723127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399361593 + 399361594.

It is an arithmetic number, because the mean of its divisors is an integer number (399361594).

Almost surely, 2^798723187 is an apocalyptic number.

798723187 is a deficient number, since it is larger than the sum of its proper divisors (1).

798723187 is an equidigital number, since it uses as much as digits as its factorization.

798723187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 52.

The square root of 798723187 is about 28261.6911560508. The cubic root of 798723187 is about 927.8236336675.

The spelling of 798723187 in words is "seven hundred ninety-eight million, seven hundred twenty-three thousand, one hundred eighty-seven".