197929085 has 4 divisors (see below), whose sum is σ = 237514908. Its totient is φ = 158343264.

The previous prime is 197929033. The next prime is 197929091. The reversal of 197929085 is 580929791.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67535524 + 130393561 = 8218^2 + 11419^2 .

It is a cyclic number.

It is not a de Polignac number, because 197929085 - 2¹⁰ = 197928061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19792904 + ... + 19792913.

It is an arithmetic number, because the mean of its divisors is an integer number (59378727).

Almost surely, 2^197929085 is an apocalyptic number.

It is an amenable number.

197929085 is a deficient number, since it is larger than the sum of its proper divisors (39585823).

197929085 is an equidigital number, since it uses as much as digits as its factorization.

197929085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39585822.

The product of its (nonzero) digits is 408240, while the sum is 50.

The square root of 197929085 is about 14068.7271990042. The cubic root of 197929085 is about 582.7780764432.

The spelling of 197929085 in words is "one hundred ninety-seven million, nine hundred twenty-nine thousand, eighty-five".