994378747 has 2 divisors, whose sum is σ = 994378748. Its totient is φ = 994378746.

The previous prime is 994378733. The next prime is 994378753. The reversal of 994378747 is 747873499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 994378747 - 2²³ = 985990139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 994378691 and 994378700.

It is not a weakly prime, because it can be changed into another prime (994378727) 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, 497189373 + 497189374.

It is an arithmetic number, because the mean of its divisors is an integer number (497189374).

Almost surely, 2^994378747 is an apocalyptic number.

994378747 is a deficient number, since it is larger than the sum of its proper divisors (1).

994378747 is an equidigital number, since it uses as much as digits as its factorization.

994378747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 58.

The square root of 994378747 is about 31533.7715314867. The cubic root of 994378747 is about 998.1227270515.

The spelling of 994378747 in words is "nine hundred ninety-four million, three hundred seventy-eight thousand, seven hundred forty-seven".