190876997 has 2 divisors, whose sum is σ = 190876998. Its totient is φ = 190876996.

The previous prime is 190876993. The next prime is 190877041. The reversal of 190876997 is 799678091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125574436 + 65302561 = 11206^2 + 8081^2 .

It is a cyclic number.

It is not a de Polignac number, because 190876997 - 2² = 190876993 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 (190876993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95438498 + 95438499.

It is an arithmetic number, because the mean of its divisors is an integer number (95438499).

Almost surely, 2^190876997 is an apocalyptic number.

It is an amenable number.

190876997 is a deficient number, since it is larger than the sum of its proper divisors (1).

190876997 is an equidigital number, since it uses as much as digits as its factorization.

190876997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 56.

The square root of 190876997 is about 13815.8241520367. The cubic root of 190876997 is about 575.7728707202.

The spelling of 190876997 in words is "one hundred ninety million, eight hundred seventy-six thousand, nine hundred ninety-seven".