390739007947 has 2 divisors, whose sum is σ = 390739007948. Its totient is φ = 390739007946.

The previous prime is 390739007929. The next prime is 390739008001. The reversal of 390739007947 is 749700937093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 390739007947 - 2¹⁹ = 390738483659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 390739007891 and 390739007900.

It is not a weakly prime, because it can be changed into another prime (390739007447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195369503973 + 195369503974.

It is an arithmetic number, because the mean of its divisors is an integer number (195369503974).

Almost surely, 2^390739007947 is an apocalyptic number.

390739007947 is a deficient number, since it is larger than the sum of its proper divisors (1).

390739007947 is an equidigital number, since it uses as much as digits as its factorization.

390739007947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9001692, while the sum is 58.

The spelling of 390739007947 in words is "three hundred ninety billion, seven hundred thirty-nine million, seven thousand, nine hundred forty-seven".