123573847 has 4 divisors (see below), whose sum is σ = 124214320. Its totient is φ = 122933376.

The previous prime is 123573841. The next prime is 123573859. The reversal of 123573847 is 748375321.

It is a happy number.

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 123573847 - 2³ = 123573839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123573841) 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, 319947 + ... + 320332.

It is an arithmetic number, because the mean of its divisors is an integer number (31053580).

Almost surely, 2^123573847 is an apocalyptic number.

123573847 is a deficient number, since it is larger than the sum of its proper divisors (640473).

123573847 is an equidigital number, since it uses as much as digits as its factorization.

123573847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640472.

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

The square root of 123573847 is about 11116.3774225239. The cubic root of 123573847 is about 498.0911847889.

The spelling of 123573847 in words is "one hundred twenty-three million, five hundred seventy-three thousand, eight hundred forty-seven".