706581247 has 2 divisors, whose sum is σ = 706581248. Its totient is φ = 706581246.

The previous prime is 706581223. The next prime is 706581283. The reversal of 706581247 is 742185607.

It is a weak prime.

It is an emirp because it is prime and its reverse (742185607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 706581247 - 2¹⁹ = 706056959 is a prime.

It is a super-2 number, since 2×706581247² = 998514117224150018, which contains 22 as substring.

It is equal to p_36576076 and since 706581247 and 36576076 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706581647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353290623 + 353290624.

It is an arithmetic number, because the mean of its divisors is an integer number (353290624).

Almost surely, 2^706581247 is an apocalyptic number.

706581247 is a deficient number, since it is larger than the sum of its proper divisors (1).

706581247 is an equidigital number, since it uses as much as digits as its factorization.

706581247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 706581247 is about 26581.5960205553. The cubic root of 706581247 is about 890.6779529111.

The spelling of 706581247 in words is "seven hundred six million, five hundred eighty-one thousand, two hundred forty-seven".