530661693 has 4 divisors (see below), whose sum is σ = 707548928. Its totient is φ = 353774460.

The previous prime is 530661661. The next prime is 530661701. The reversal of 530661693 is 396166035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 530661693 - 2⁵ = 530661661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530661793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88443613 + ... + 88443618.

It is an arithmetic number, because the mean of its divisors is an integer number (176887232).

Almost surely, 2^530661693 is an apocalyptic number.

It is an amenable number.

530661693 is a deficient number, since it is larger than the sum of its proper divisors (176887235).

530661693 is a wasteful number, since it uses less digits than its factorization.

530661693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176887234.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 530661693 is about 23036.0954373783. The cubic root of 530661693 is about 809.6038773374.

The spelling of 530661693 in words is "five hundred thirty million, six hundred sixty-one thousand, six hundred ninety-three".