190862897 has 2 divisors, whose sum is σ = 190862898. Its totient is φ = 190862896.

The previous prime is 190862887. The next prime is 190862933. The reversal of 190862897 is 798268091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190550416 + 312481 = 13804^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 190862897 - 2¹⁶ = 190797361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (190862887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95431448 + 95431449.

It is an arithmetic number, because the mean of its divisors is an integer number (95431449).

Almost surely, 2^190862897 is an apocalyptic number.

It is an amenable number.

190862897 is a deficient number, since it is larger than the sum of its proper divisors (1).

190862897 is an equidigital number, since it uses as much as digits as its factorization.

190862897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 190862897 is about 13815.3138581793. The cubic root of 190862897 is about 575.7586930080.

The spelling of 190862897 in words is "one hundred ninety million, eight hundred sixty-two thousand, eight hundred ninety-seven".