994893197 has 2 divisors, whose sum is σ = 994893198. Its totient is φ = 994893196.

The previous prime is 994893149. The next prime is 994893203. The reversal of 994893197 is 791398499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595652836 + 399240361 = 24406^2 + 19981^2 .

It is a cyclic number.

It is not a de Polignac number, because 994893197 - 2¹² = 994889101 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 (994893797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497446598 + 497446599.

It is an arithmetic number, because the mean of its divisors is an integer number (497446599).

Almost surely, 2^994893197 is an apocalyptic number.

It is an amenable number.

994893197 is a deficient number, since it is larger than the sum of its proper divisors (1).

994893197 is an equidigital number, since it uses as much as digits as its factorization.

994893197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 59.

The square root of 994893197 is about 31541.9276043808. The cubic root of 994893197 is about 998.2948263689.

The spelling of 994893197 in words is "nine hundred ninety-four million, eight hundred ninety-three thousand, one hundred ninety-seven".