523272406 has 4 divisors (see below), whose sum is σ = 784908612. Its totient is φ = 261636202.

The previous prime is 523272403. The next prime is 523272413. The reversal of 523272406 is 604272325.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523272401) 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 as a sum of consecutive naturals, namely, 130818100 + ... + 130818103.

It is an arithmetic number, because the mean of its divisors is an integer number (196227153).

Almost surely, 2^523272406 is an apocalyptic number.

523272406 is a deficient number, since it is larger than the sum of its proper divisors (261636206).

523272406 is a wasteful number, since it uses less digits than its factorization.

523272406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261636205.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 523272406 is about 22875.1482180990. The cubic root of 523272406 is about 805.8284777259.

The spelling of 523272406 in words is "five hundred twenty-three million, two hundred seventy-two thousand, four hundred six".