530878493 has 4 divisors (see below), whose sum is σ = 531000540. Its totient is φ = 530756448.

The previous prime is 530878477. The next prime is 530878501. The reversal of 530878493 is 394878035.

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

It can be written as a sum of positive squares in 2 ways, for example, as 100440484 + 430438009 = 10022^2 + 20747^2 .

It is a cyclic number.

It is not a de Polignac number, because 530878493 - 2⁴ = 530878477 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 (530878463) 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, 54248 + ... + 63281.

It is an arithmetic number, because the mean of its divisors is an integer number (132750135).

Almost surely, 2^530878493 is an apocalyptic number.

It is an amenable number.

530878493 is a deficient number, since it is larger than the sum of its proper divisors (122047).

530878493 is a wasteful number, since it uses less digits than its factorization.

530878493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122046.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 530878493 is about 23040.8006154300. The cubic root of 530878493 is about 809.7141159479.

The spelling of 530878493 in words is "five hundred thirty million, eight hundred seventy-eight thousand, four hundred ninety-three".