706339831 has 4 divisors (see below), whose sum is σ = 706503952. Its totient is φ = 706175712.

The previous prime is 706339813. The next prime is 706339847. The reversal of 706339831 is 138933607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138933607 = 661 ⋅210187.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-706339831 is a prime.

It is a super-2 number, since 2×706339831² = 997831913714217122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706339811) 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, 75426 + ... + 84271.

It is an arithmetic number, because the mean of its divisors is an integer number (176625988).

Almost surely, 2^706339831 is an apocalyptic number.

706339831 is a deficient number, since it is larger than the sum of its proper divisors (164121).

706339831 is a wasteful number, since it uses less digits than its factorization.

706339831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164120.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 706339831 is about 26577.0545960232. The cubic root of 706339831 is about 890.5765027225.

The spelling of 706339831 in words is "seven hundred six million, three hundred thirty-nine thousand, eight hundred thirty-one".