530728415 has 8 divisors (see below), whose sum is σ = 727856160. Its totient is φ = 363928032.

The previous prime is 530728357. The next prime is 530728433. The reversal of 530728415 is 514827035.

It is a happy number.

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 530728415 - 2⁶ = 530728351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 15163669 = 530728415 / (5 + 3 + 0 + 7 + 2 + 8 + 4 + 1 + 5).

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, 7581800 + ... + 7581869.

It is an arithmetic number, because the mean of its divisors is an integer number (90982020).

Almost surely, 2^530728415 is an apocalyptic number.

530728415 is a deficient number, since it is larger than the sum of its proper divisors (197127745).

530728415 is a wasteful number, since it uses less digits than its factorization.

530728415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15163681.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 530728415 is about 23037.5435973543. The cubic root of 530728415 is about 809.6378073828.

The spelling of 530728415 in words is "five hundred thirty million, seven hundred twenty-eight thousand, four hundred fifteen".