196920677 has 2 divisors, whose sum is σ = 196920678. Its totient is φ = 196920676.

The previous prime is 196920671. The next prime is 196920727. The reversal of 196920677 is 776029691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195972001 + 948676 = 13999^2 + 974^2 .

It is a cyclic number.

It is not a de Polignac number, because 196920677 - 2¹⁴ = 196904293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196920671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98460338 + 98460339.

It is an arithmetic number, because the mean of its divisors is an integer number (98460339).

Almost surely, 2^196920677 is an apocalyptic number.

It is an amenable number.

196920677 is a deficient number, since it is larger than the sum of its proper divisors (1).

196920677 is an equidigital number, since it uses as much as digits as its factorization.

196920677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 196920677 is about 14032.8427982359. The cubic root of 196920677 is about 581.7866793779.

The spelling of 196920677 in words is "one hundred ninety-six million, nine hundred twenty thousand, six hundred seventy-seven".