87393055 has 4 divisors (see below), whose sum is σ = 104871672. Its totient is φ = 69914440.

The previous prime is 87393049. The next prime is 87393079. The reversal of 87393055 is 55039378.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55039378 = 2 ⋅27519689.

It is not a de Polignac number, because 87393055 - 2¹⁷ = 87261983 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87392999 and 87393017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8739301 + ... + 8739310.

It is an arithmetic number, because the mean of its divisors is an integer number (26217918).

Almost surely, 2^87393055 is an apocalyptic number.

87393055 is a deficient number, since it is larger than the sum of its proper divisors (17478617).

87393055 is a wasteful number, since it uses less digits than its factorization.

87393055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17478616.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 87393055 is about 9348.4252684610. The cubic root of 87393055 is about 443.7710568597.

The spelling of 87393055 in words is "eighty-seven million, three hundred ninety-three thousand, fifty-five".