798621189 has 16 divisors (see below), whose sum is σ = 1131469632. Its totient is φ = 499315968.

The previous prime is 798621181. The next prime is 798621251. The reversal of 798621189 is 981126897.

It is not a de Polignac number, because 798621189 - 2³ = 798621181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798621181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13234 + ... + 42099.

It is an arithmetic number, because the mean of its divisors is an integer number (70716852).

Almost surely, 2^798621189 is an apocalyptic number.

It is an amenable number.

798621189 is a deficient number, since it is larger than the sum of its proper divisors (332848443).

798621189 is a wasteful number, since it uses less digits than its factorization.

798621189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55636.

The product of its digits is 435456, while the sum is 51.

The square root of 798621189 is about 28259.8865708976. The cubic root of 798621189 is about 927.7841372207.

It can be divided in two parts, 79 and 8621189, that added together give a palindrome (8621268).

The spelling of 798621189 in words is "seven hundred ninety-eight million, six hundred twenty-one thousand, one hundred eighty-nine".