1600287987 has 4 divisors (see below), whose sum is σ = 2133717320. Its totient is φ = 1066858656.

The previous prime is 1600287971. The next prime is 1600287991. The reversal of 1600287987 is 7897820061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7897820061 = 3 ⋅2632606687.

It is not a de Polignac number, because 1600287987 - 2⁴ = 1600287971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1600287967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266714662 + ... + 266714667.

It is an arithmetic number, because the mean of its divisors is an integer number (533429330).

Almost surely, 2^1600287987 is an apocalyptic number.

1600287987 is a deficient number, since it is larger than the sum of its proper divisors (533429333).

1600287987 is an equidigital number, since it uses as much as digits as its factorization.

1600287987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533429332.

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 1600287987 is about 40003.5996755292. The cubic root of 1600287987 is about 1169.6772643334.

The spelling of 1600287987 in words is "one billion, six hundred million, two hundred eighty-seven thousand, nine hundred eighty-seven".