531493604 has 12 divisors (see below), whose sum is σ = 955252284. Its totient is φ = 258564384.

The previous prime is 531493583. The next prime is 531493607. The reversal of 531493604 is 406394135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 275493604 + 256000000 = 16598^2 + 16000^2 .

It is not an unprimeable number, because it can be changed into a prime (531493607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1795439 + ... + 1795734.

It is an arithmetic number, because the mean of its divisors is an integer number (79604357).

Almost surely, 2^531493604 is an apocalyptic number.

It is an amenable number.

531493604 is a deficient number, since it is larger than the sum of its proper divisors (423758680).

531493604 is a wasteful number, since it uses less digits than its factorization.

531493604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591214 (or 3591212 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 531493604 is about 23054.1450502941. The cubic root of 531493604 is about 810.0267247190.

The spelling of 531493604 in words is "five hundred thirty-one million, four hundred ninety-three thousand, six hundred four".