853123477 has 2 divisors, whose sum is σ = 853123478. Its totient is φ = 853123476.

The previous prime is 853123463. The next prime is 853123499. The reversal of 853123477 is 774321358.

It is a happy number.

853123477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 633075921 + 220047556 = 25161^2 + 14834^2 .

It is a cyclic number.

It is not a de Polignac number, because 853123477 - 2¹¹ = 853121429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853123177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426561738 + 426561739.

It is an arithmetic number, because the mean of its divisors is an integer number (426561739).

Almost surely, 2^853123477 is an apocalyptic number.

It is an amenable number.

853123477 is a deficient number, since it is larger than the sum of its proper divisors (1).

853123477 is an equidigital number, since it uses as much as digits as its factorization.

853123477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 853123477 is about 29208.2775425050. The cubic root of 853123477 is about 948.4271210115.

The spelling of 853123477 in words is "eight hundred fifty-three million, one hundred twenty-three thousand, four hundred seventy-seven".