1587680002 has 4 divisors (see below), whose sum is σ = 2381520006. Its totient is φ = 793840000.

The previous prime is 1587679999. The next prime is 1587680009. The reversal of 1587680002 is 2000867851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2000867851 = 1327 ⋅1507813.

It can be written as a sum of positive squares in only one way, i.e., 1526386761 + 61293241 = 39069^2 + 7829^2 .

It is not an unprimeable number, because it can be changed into a prime (1587680009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396919999 + ... + 396920002.

Almost surely, 2^1587680002 is an apocalyptic number.

1587680002 is a deficient number, since it is larger than the sum of its proper divisors (793840004).

1587680002 is an equidigital number, since it uses as much as digits as its factorization.

1587680002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793840003.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1587680002 is about 39845.7024282419. The cubic root of 1587680002 is about 1166.5973659879.

The spelling of 1587680002 in words is "one billion, five hundred eighty-seven million, six hundred eighty thousand, two".