1428334587 has 8 divisors (see below), whose sum is σ = 2116051280. Its totient is φ = 952223040.

The previous prime is 1428334573. The next prime is 1428334597. The reversal of 1428334587 is 7854338241.

1428334587 is a `hidden beast` number, since 14 + 28 + 3 + 34 + 587 = 666.

It is not a de Polignac number, because 1428334587 - 2¹⁹ = 1427810299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428334597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26450614 + ... + 26450667.

It is an arithmetic number, because the mean of its divisors is an integer number (264506410).

Almost surely, 2^1428334587 is an apocalyptic number.

1428334587 is a deficient number, since it is larger than the sum of its proper divisors (687716693).

1428334587 is an equidigital number, since it uses as much as digits as its factorization.

1428334587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52901290 (or 52901284 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 1428334587 is about 37793.3140515621. The cubic root of 1428334587 is about 1126.1856371296.

The spelling of 1428334587 in words is "one billion, four hundred twenty-eight million, three hundred thirty-four thousand, five hundred eighty-seven".