531677605 has 8 divisors (see below), whose sum is σ = 655256952. Its totient is φ = 413846208.

The previous prime is 531677599. The next prime is 531677623. The reversal of 531677605 is 506776135.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 193154404 + 338523201 = 13898^2 + 18399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531677605 - 2²¹ = 529580453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436782 + ... + 1437151.

It is an arithmetic number, because the mean of its divisors is an integer number (81907119).

Almost surely, 2^531677605 is an apocalyptic number.

It is an amenable number.

531677605 is a deficient number, since it is larger than the sum of its proper divisors (123579347).

531677605 is a wasteful number, since it uses less digits than its factorization.

531677605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873975.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 531677605 is about 23058.1353322423. The cubic root of 531677605 is about 810.1201899585.

The spelling of 531677605 in words is "five hundred thirty-one million, six hundred seventy-seven thousand, six hundred five".