994818731 has 2 divisors, whose sum is σ = 994818732. Its totient is φ = 994818730.

The previous prime is 994818719. The next prime is 994818743. The reversal of 994818731 is 137818499.

It is a balanced prime because it is at equal distance from previous prime (994818719) and next prime (994818743).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994818731 is a prime.

It is a super-2 number, since 2×994818731² = 1979328615096900722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 994818731.

It is not a weakly prime, because it can be changed into another prime (994818751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497409365 + 497409366.

It is an arithmetic number, because the mean of its divisors is an integer number (497409366).

Almost surely, 2^994818731 is an apocalyptic number.

994818731 is a deficient number, since it is larger than the sum of its proper divisors (1).

994818731 is an equidigital number, since it uses as much as digits as its factorization.

994818731 is an odious number, because the sum of its binary digits is odd.

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

The square root of 994818731 is about 31540.7471534839. The cubic root of 994818731 is about 998.2699188788.

The spelling of 994818731 in words is "nine hundred ninety-four million, eight hundred eighteen thousand, seven hundred thirty-one".