706669131 has 24 divisors (see below), whose sum is σ = 1098909840. Its totient is φ = 402760512.

The previous prime is 706669097. The next prime is 706669157. The reversal of 706669131 is 131966607.

It is not a de Polignac number, because 706669131 - 2⁷ = 706669003 is a prime.

It is a super-2 number, since 2×706669131² = 998762521416590322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 706669131.

It is not an unprimeable number, because it can be changed into a prime (706669231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52305 + ... + 64413.

It is an arithmetic number, because the mean of its divisors is an integer number (45787910).

Almost surely, 2^706669131 is an apocalyptic number.

706669131 is a deficient number, since it is larger than the sum of its proper divisors (392240709).

706669131 is a wasteful number, since it uses less digits than its factorization.

706669131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12523 (or 12516 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 706669131 is about 26583.2490677870. The cubic root of 706669131 is about 890.7148786463.

It can be divided in two parts, 70666 and 9131, that added together give a palindrome (79797).

The spelling of 706669131 in words is "seven hundred six million, six hundred sixty-nine thousand, one hundred thirty-one".