705211423 has 16 divisors (see below), whose sum is σ = 820501056. Its totient is φ = 593591040.

The previous prime is 705211421. The next prime is 705211457. The reversal of 705211423 is 324112507.

It is a happy number.

It is not a de Polignac number, because 705211423 - 2¹ = 705211421 is a prime.

It is a super-2 number, since 2×705211423² = 994646302259369858, 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 (705211421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406065 + ... + 407797.

It is an arithmetic number, because the mean of its divisors is an integer number (51281316).

Almost surely, 2^705211423 is an apocalyptic number.

705211423 is a deficient number, since it is larger than the sum of its proper divisors (115289633).

705211423 is a wasteful number, since it uses less digits than its factorization.

705211423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 705211423 is about 26555.8171216779. The cubic root of 705211423 is about 890.1020053097.

The spelling of 705211423 in words is "seven hundred five million, two hundred eleven thousand, four hundred twenty-three".