6706905431 has 4 divisors (see below), whose sum is σ = 6717369264. Its totient is φ = 6696441600.

The previous prime is 6706905427. The next prime is 6706905479. The reversal of 6706905431 is 1345096076.

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 6706905431 - 2² = 6706905427 is a prime.

It is a super-2 number, since 2×6706905431² = 89965160920754591522, 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 (6706905421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5230955 + ... + 5232236.

It is an arithmetic number, because the mean of its divisors is an integer number (1679342316).

Almost surely, 2^6706905431 is an apocalyptic number.

6706905431 is a deficient number, since it is larger than the sum of its proper divisors (10463833).

6706905431 is a wasteful number, since it uses less digits than its factorization.

6706905431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10463832.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 6706905431 is about 81895.6984889927. The cubic root of 6706905431 is about 1885.8510774748.

The spelling of 6706905431 in words is "six billion, seven hundred six million, nine hundred five thousand, four hundred thirty-one".