1798998971 has 16 divisors (see below), whose sum is σ = 2265124608. Its totient is φ = 1387932000.

The previous prime is 1798998953. The next prime is 1798998979.

1798998971 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1798998971 - 2¹⁰ = 1798997947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1798998979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107885 + ... + 123438.

It is an arithmetic number, because the mean of its divisors is an integer number (141570288).

Almost surely, 2^1798998971 is an apocalyptic number.

1798998971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1798998971 is a deficient number, since it is larger than the sum of its proper divisors (466125637).

1798998971 is a wasteful number, since it uses less digits than its factorization.

1798998971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231442.

The product of its digits is 20575296, while the sum is 68.

The square root of 1798998971 is about 42414.6079906440. The cubic root of 1798998971 is about 1216.2148587597.

The spelling of 1798998971 in words is "one billion, seven hundred ninety-eight million, nine hundred ninety-eight thousand, nine hundred seventy-one".