87730255 has 4 divisors (see below), whose sum is σ = 105276312. Its totient is φ = 70184200.

The previous prime is 87730243. The next prime is 87730259. The reversal of 87730255 is 55203778.

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

It is not a de Polignac number, because 87730255 - 2¹⁵ = 87697487 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 (87730259) 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, 8773021 + ... + 8773030.

It is an arithmetic number, because the mean of its divisors is an integer number (26319078).

Almost surely, 2^87730255 is an apocalyptic number.

87730255 is a deficient number, since it is larger than the sum of its proper divisors (17546057).

87730255 is a wasteful number, since it uses less digits than its factorization.

87730255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17546056.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 87730255 is about 9366.4430281724. The cubic root of 87730255 is about 444.3410775701.

The spelling of 87730255 in words is "eighty-seven million, seven hundred thirty thousand, two hundred fifty-five".