994332641 has 2 divisors, whose sum is σ = 994332642. Its totient is φ = 994332640.

The previous prime is 994332637. The next prime is 994332659. The reversal of 994332641 is 146233499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 672883600 + 321449041 = 25940^2 + 17929^2 .

It is an emirp because it is prime and its reverse (146233499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 994332641 - 2² = 994332637 is a prime.

It is a super-3 number, since 3×994332641³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (994332341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497166320 + 497166321.

It is an arithmetic number, because the mean of its divisors is an integer number (497166321).

Almost surely, 2^994332641 is an apocalyptic number.

It is an amenable number.

994332641 is a deficient number, since it is larger than the sum of its proper divisors (1).

994332641 is an equidigital number, since it uses as much as digits as its factorization.

994332641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 41.

The square root of 994332641 is about 31533.0404655181. The cubic root of 994332641 is about 998.1073002812.

The spelling of 994332641 in words is "nine hundred ninety-four million, three hundred thirty-two thousand, six hundred forty-one".