523971197 has 12 divisors (see below), whose sum is σ = 539526624. Its totient is φ = 508812720.

The previous prime is 523971191. The next prime is 523971199. The reversal of 523971197 is 791179325.

It is not a de Polignac number, because 523971197 - 2²² = 519776893 is a prime.

It is a super-2 number, since 2×523971197² = 549091630571225618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523971191) 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 11 ways as a sum of consecutive naturals, for example, 288422 + ... + 290232.

It is an arithmetic number, because the mean of its divisors is an integer number (44960552).

Almost surely, 2^523971197 is an apocalyptic number.

It is an amenable number.

523971197 is a deficient number, since it is larger than the sum of its proper divisors (15555427).

523971197 is a wasteful number, since it uses less digits than its factorization.

523971197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020 (or 1967 counting only the distinct ones).

The product of its digits is 119070, while the sum is 44.

The square root of 523971197 is about 22890.4171434249. The cubic root of 523971197 is about 806.1870259730.

The spelling of 523971197 in words is "five hundred twenty-three million, nine hundred seventy-one thousand, one hundred ninety-seven".