994331749 has 2 divisors, whose sum is σ = 994331750. Its totient is φ = 994331748.

The previous prime is 994331743. The next prime is 994331777. The reversal of 994331749 is 947133499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 887622849 + 106708900 = 29793^2 + 10330^2 .

It is a cyclic number.

It is not a de Polignac number, because 994331749 - 2¹⁹ = 993807461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (994331743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497165874 + 497165875.

It is an arithmetic number, because the mean of its divisors is an integer number (497165875).

Almost surely, 2^994331749 is an apocalyptic number.

It is an amenable number.

994331749 is a deficient number, since it is larger than the sum of its proper divisors (1).

994331749 is an equidigital number, since it uses as much as digits as its factorization.

994331749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 49.

The square root of 994331749 is about 31533.0263216203. The cubic root of 994331749 is about 998.1070018190.

The spelling of 994331749 in words is "nine hundred ninety-four million, three hundred thirty-one thousand, seven hundred forty-nine".