196623677 has 2 divisors, whose sum is σ = 196623678. Its totient is φ = 196623676.

The previous prime is 196623673. The next prime is 196623697. The reversal of 196623677 is 776326691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148376761 + 48246916 = 12181^2 + 6946^2 .

It is a cyclic number.

It is not a de Polignac number, because 196623677 - 2² = 196623673 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196623673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98311838 + 98311839.

It is an arithmetic number, because the mean of its divisors is an integer number (98311839).

Almost surely, 2^196623677 is an apocalyptic number.

It is an amenable number.

196623677 is a deficient number, since it is larger than the sum of its proper divisors (1).

196623677 is an equidigital number, since it uses as much as digits as its factorization.

196623677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 47.

The square root of 196623677 is about 14022.2564874559. The cubic root of 196623677 is about 581.4940444819.

The spelling of 196623677 in words is "one hundred ninety-six million, six hundred twenty-three thousand, six hundred seventy-seven".