706786387 has 2 divisors, whose sum is σ = 706786388. Its totient is φ = 706786386.

The previous prime is 706786363. The next prime is 706786397. The reversal of 706786387 is 783687607.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 706786387 - 2¹⁹ = 706262099 is a prime.

It is a super-3 number, since 3×706786387³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (706786307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353393193 + 353393194.

It is an arithmetic number, because the mean of its divisors is an integer number (353393194).

Almost surely, 2^706786387 is an apocalyptic number.

706786387 is a deficient number, since it is larger than the sum of its proper divisors (1).

706786387 is an equidigital number, since it uses as much as digits as its factorization.

706786387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The square root of 706786387 is about 26585.4544253056. The cubic root of 706786387 is about 890.7641406857.

The spelling of 706786387 in words is "seven hundred six million, seven hundred eighty-six thousand, three hundred eighty-seven".