705672231 has 16 divisors (see below), whose sum is σ = 1035521280. Its totient is φ = 423893120.

The previous prime is 705672221. The next prime is 705672277. The reversal of 705672231 is 132276507.

705672231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 705672231 - 2¹¹ = 705670183 is a prime.

It is a super-2 number, since 2×705672231² = 995946595209034722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 705672192 and 705672201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705672221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90891 + ... + 98348.

It is an arithmetic number, because the mean of its divisors is an integer number (64720080).

Almost surely, 2^705672231 is an apocalyptic number.

705672231 is a deficient number, since it is larger than the sum of its proper divisors (329849049).

705672231 is a wasteful number, since it uses less digits than its factorization.

705672231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189366.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 705672231 is about 26564.4919206071. The cubic root of 705672231 is about 890.2958369301.

The spelling of 705672231 in words is "seven hundred five million, six hundred seventy-two thousand, two hundred thirty-one".