994274591 has 2 divisors, whose sum is σ = 994274592. Its totient is φ = 994274590.

The previous prime is 994274587. The next prime is 994274627. The reversal of 994274591 is 195472499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 994274591 - 2² = 994274587 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 (994274531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497137295 + 497137296.

It is an arithmetic number, because the mean of its divisors is an integer number (497137296).

Almost surely, 2^994274591 is an apocalyptic number.

994274591 is a deficient number, since it is larger than the sum of its proper divisors (1).

994274591 is an equidigital number, since it uses as much as digits as its factorization.

994274591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 50.

The square root of 994274591 is about 31532.1199889890. The cubic root of 994274591 is about 998.0878764472.

The spelling of 994274591 in words is "nine hundred ninety-four million, two hundred seventy-four thousand, five hundred ninety-one".