428571115 has 8 divisors (see below), whose sum is σ = 587754720. Its totient is φ = 293877312.

The previous prime is 428571109. The next prime is 428571127. The reversal of 428571115 is 511175824.

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 428571115 - 2³ = 428571107 is a prime.

It is a super-2 number, since 2×428571115² = 367346401224686450, which contains 22 as substring.

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, 6122410 + ... + 6122479.

It is an arithmetic number, because the mean of its divisors is an integer number (73469340).

Almost surely, 2^428571115 is an apocalyptic number.

428571115 is a deficient number, since it is larger than the sum of its proper divisors (159183605).

428571115 is a wasteful number, since it uses less digits than its factorization.

428571115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12244901.

The product of its digits is 11200, while the sum is 34.

The square root of 428571115 is about 20701.9592067997. The cubic root of 428571115 is about 753.9472572497.

The spelling of 428571115 in words is "four hundred twenty-eight million, five hundred seventy-one thousand, one hundred fifteen".