706857971 has 4 divisors (see below), whose sum is σ = 708247200. Its totient is φ = 705468744.

The previous prime is 706857967. The next prime is 706858013. The reversal of 706857971 is 179758607.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 706857971 - 2² = 706857967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706857911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693851 + ... + 694868.

It is an arithmetic number, because the mean of its divisors is an integer number (177061800).

Almost surely, 2^706857971 is an apocalyptic number.

706857971 is a deficient number, since it is larger than the sum of its proper divisors (1389229).

706857971 is a wasteful number, since it uses less digits than its factorization.

706857971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389228.

The product of its (nonzero) digits is 740880, while the sum is 50.

The square root of 706857971 is about 26586.8006913205. The cubic root of 706857971 is about 890.7942121514.

The spelling of 706857971 in words is "seven hundred six million, eight hundred fifty-seven thousand, nine hundred seventy-one".