706920947 has 2 divisors, whose sum is σ = 706920948. Its totient is φ = 706920946.

The previous prime is 706920919. The next prime is 706921027. The reversal of 706920947 is 749029607.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 706920947 - 2¹⁰ = 706919923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 706920898 and 706920907.

It is not a weakly prime, because it can be changed into another prime (706922947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353460473 + 353460474.

It is an arithmetic number, because the mean of its divisors is an integer number (353460474).

Almost surely, 2^706920947 is an apocalyptic number.

706920947 is a deficient number, since it is larger than the sum of its proper divisors (1).

706920947 is an equidigital number, since it uses as much as digits as its factorization.

706920947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 706920947 is about 26587.9850120313. The cubic root of 706920947 is about 890.8206658345.

The spelling of 706920947 in words is "seven hundred six million, nine hundred twenty thousand, nine hundred forty-seven".