197729469 has 12 divisors (see below), whose sum is σ = 326410656. Its totient is φ = 112988232.

The previous prime is 197729461. The next prime is 197729471. The reversal of 197729469 is 964927791.

It is not a de Polignac number, because 197729469 - 2³ = 197729461 is a prime.

It is a super-2 number, since 2×197729469² = 78193885822043922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197729461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1569219 + ... + 1569344.

It is an arithmetic number, because the mean of its divisors is an integer number (27200888).

Almost surely, 2^197729469 is an apocalyptic number.

It is an amenable number.

197729469 is a deficient number, since it is larger than the sum of its proper divisors (128681187).

197729469 is a wasteful number, since it uses less digits than its factorization.

197729469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138576 (or 3138573 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 197729469 is about 14061.6310931556. The cubic root of 197729469 is about 582.5820955473.

It can be divided in two parts, 19772 and 9469, that added together give a square (29241 = 171²).

The spelling of 197729469 in words is "one hundred ninety-seven million, seven hundred twenty-nine thousand, four hundred sixty-nine".