798797169 has 9 divisors (see below), whose sum is σ = 1153940619. Its totient is φ = 532474920.

The previous prime is 798797159. The next prime is 798797179. The reversal of 798797169 is 961797897.

The square root of 798797169 is 28263.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (798797159) and next prime (798797179).

It can be written as a sum of positive squares in only one way, i.e., 259628769 + 539168400 = 16113^2 + 23220^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 798797169 - 2²³ = 790408561 is a prime.

It is a super-2 number, since 2×798797169² = 1276153834404829122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (798797159) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 80079 + ... + 89499.

Almost surely, 2^798797169 is an apocalyptic number.

798797169 is the 28263-rd square number.

798797169 is the 14132-nd centered octagonal number.

It is an amenable number.

798797169 is a deficient number, since it is larger than the sum of its proper divisors (355143450).

798797169 is an frugal number, since it uses more digits than its factorization.

798797169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18848 (or 9424 counting only the distinct ones).

The product of its digits is 12002256, while the sum is 63.

The cubic root of 798797169 is about 927.8522794403.

The spelling of 798797169 in words is "seven hundred ninety-eight million, seven hundred ninety-seven thousand, one hundred sixty-nine".