2087157287 has 8 divisors (see below), whose sum is σ = 2178542304. Its totient is φ = 1995825568.

The previous prime is 2087157271. The next prime is 2087157343. The reversal of 2087157287 is 7827517802.

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 2087157287 - 2⁴ = 2087157271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087157187) 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, 80993 + ... + 103605.

It is an arithmetic number, because the mean of its divisors is an integer number (272317788).

Almost surely, 2^2087157287 is an apocalyptic number.

2087157287 is a deficient number, since it is larger than the sum of its proper divisors (91385017).

2087157287 is a wasteful number, since it uses less digits than its factorization.

2087157287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26649.

The product of its (nonzero) digits is 439040, while the sum is 47.

The square root of 2087157287 is about 45685.4165680910. The cubic root of 2087157287 is about 1277.9633315139.

The spelling of 2087157287 in words is "two billion, eighty-seven million, one hundred fifty-seven thousand, two hundred eighty-seven".