1580087987 has 2 divisors, whose sum is σ = 1580087988. Its totient is φ = 1580087986.

The previous prime is 1580087983. The next prime is 1580087989. The reversal of 1580087987 is 7897800851.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1580087987 - 2² = 1580087983 is a prime.

Together with 1580087989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1580087981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790043993 + 790043994.

It is an arithmetic number, because the mean of its divisors is an integer number (790043994).

Almost surely, 2^1580087987 is an apocalyptic number.

1580087987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1580087987 is an equidigital number, since it uses as much as digits as its factorization.

1580087987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 53.

The square root of 1580087987 is about 39750.3205899022. The cubic root of 1580087987 is about 1164.7349042851.

The spelling of 1580087987 in words is "one billion, five hundred eighty million, eighty-seven thousand, nine hundred eighty-seven".