197765396 has 6 divisors (see below), whose sum is σ = 346089450. Its totient is φ = 98882696.

The previous prime is 197765383. The next prime is 197765423. The reversal of 197765396 is 693567791.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 197683600 + 81796 = 14060^2 + 286^2 .

It is a super-2 number, since 2×197765396² = 78222303710073632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24720671 + ... + 24720678.

It is an arithmetic number, because the mean of its divisors is an integer number (57681575).

Almost surely, 2^197765396 is an apocalyptic number.

It is an amenable number.

197765396 is a deficient number, since it is larger than the sum of its proper divisors (148324054).

197765396 is a wasteful number, since it uses less digits than its factorization.

197765396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49441353 (or 49441351 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 53.

The square root of 197765396 is about 14062.9085185107. The cubic root of 197765396 is about 582.6173780295.

The spelling of 197765396 in words is "one hundred ninety-seven million, seven hundred sixty-five thousand, three hundred ninety-six".