994423901 has 2 divisors, whose sum is σ = 994423902. Its totient is φ = 994423900.

The previous prime is 994423873. The next prime is 994423907. The reversal of 994423901 is 109324499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 988788025 + 5635876 = 31445^2 + 2374^2 .

It is a cyclic number.

It is not a de Polignac number, because 994423901 - 2¹⁴ = 994407517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (994423907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497211950 + 497211951.

It is an arithmetic number, because the mean of its divisors is an integer number (497211951).

Almost surely, 2^994423901 is an apocalyptic number.

It is an amenable number.

994423901 is a deficient number, since it is larger than the sum of its proper divisors (1).

994423901 is an equidigital number, since it uses as much as digits as its factorization.

994423901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 994423901 is about 31534.4874859256. The cubic root of 994423901 is about 998.1378348267.

The spelling of 994423901 in words is "nine hundred ninety-four million, four hundred twenty-three thousand, nine hundred one".