706857031 has 2 divisors, whose sum is σ = 706857032. Its totient is φ = 706857030.

The previous prime is 706857013. The next prime is 706857037. The reversal of 706857031 is 130758607.

Together with previous prime (706857013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 706857031 - 2²³ = 698468423 is a prime.

It is a super-2 number, since 2×706857031² = 999293724548269922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706857037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353428515 + 353428516.

It is an arithmetic number, because the mean of its divisors is an integer number (353428516).

Almost surely, 2^706857031 is an apocalyptic number.

706857031 is a deficient number, since it is larger than the sum of its proper divisors (1).

706857031 is an equidigital number, since it uses as much as digits as its factorization.

706857031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 706857031 is about 26586.7830133696. The cubic root of 706857031 is about 890.7938172833.

The spelling of 706857031 in words is "seven hundred six million, eight hundred fifty-seven thousand, thirty-one".