196878697 has 2 divisors, whose sum is σ = 196878698. Its totient is φ = 196878696.

The previous prime is 196878691. The next prime is 196878707. The reversal of 196878697 is 796878691.

196878697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182898576 + 13980121 = 13524^2 + 3739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196878697 is a prime.

It is a super-2 number, since 2×196878697² = 77522442664835618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196878691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98439348 + 98439349.

It is an arithmetic number, because the mean of its divisors is an integer number (98439349).

Almost surely, 2^196878697 is an apocalyptic number.

It is an amenable number.

196878697 is a deficient number, since it is larger than the sum of its proper divisors (1).

196878697 is an equidigital number, since it uses as much as digits as its factorization.

196878697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 61.

The square root of 196878697 is about 14031.3469417587. The cubic root of 196878697 is about 581.7453342350.

The spelling of 196878697 in words is "one hundred ninety-six million, eight hundred seventy-eight thousand, six hundred ninety-seven".