87455287 has 4 divisors (see below), whose sum is σ = 88937640. Its totient is φ = 85972936.

The previous prime is 87455281. The next prime is 87455299. The reversal of 87455287 is 78255478.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87455287 - 2³ = 87455279 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87455281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741088 + ... + 741205.

It is an arithmetic number, because the mean of its divisors is an integer number (22234410).

Almost surely, 2^87455287 is an apocalyptic number.

87455287 is a deficient number, since it is larger than the sum of its proper divisors (1482353).

87455287 is a wasteful number, since it uses less digits than its factorization.

87455287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482352.

The product of its digits is 627200, while the sum is 46.

The square root of 87455287 is about 9351.7531511476. The cubic root of 87455287 is about 443.8763673170.

The spelling of 87455287 in words is "eighty-seven million, four hundred fifty-five thousand, two hundred eighty-seven".