994635797 has 2 divisors, whose sum is σ = 994635798. Its totient is φ = 994635796.

The previous prime is 994635793. The next prime is 994635799. The reversal of 994635797 is 797536499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820765201 + 173870596 = 28649^2 + 13186^2 .

It is a cyclic number.

It is not a de Polignac number, because 994635797 - 2² = 994635793 is a prime.

Together with 994635799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (994635793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497317898 + 497317899.

It is an arithmetic number, because the mean of its divisors is an integer number (497317899).

Almost surely, 2^994635797 is an apocalyptic number.

It is an amenable number.

994635797 is a deficient number, since it is larger than the sum of its proper divisors (1).

994635797 is an equidigital number, since it uses as much as digits as its factorization.

994635797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12859560, while the sum is 59.

The square root of 994635797 is about 31537.8470571471. The cubic root of 994635797 is about 998.2087255852.

The spelling of 994635797 in words is "nine hundred ninety-four million, six hundred thirty-five thousand, seven hundred ninety-seven".