87132273 has 4 divisors (see below), whose sum is σ = 116176368. Its totient is φ = 58088180.

The previous prime is 87132263. The next prime is 87132301. The reversal of 87132273 is 37223178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87132273 - 2⁶ = 87132209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87132223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14522043 + ... + 14522048.

It is an arithmetic number, because the mean of its divisors is an integer number (29044092).

Almost surely, 2^87132273 is an apocalyptic number.

It is an amenable number.

87132273 is a deficient number, since it is larger than the sum of its proper divisors (29044095).

87132273 is a wasteful number, since it uses less digits than its factorization.

87132273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29044094.

The product of its digits is 14112, while the sum is 33.

The square root of 87132273 is about 9334.4669371100. The cubic root of 87132273 is about 443.3292108963.

The spelling of 87132273 in words is "eighty-seven million, one hundred thirty-two thousand, two hundred seventy-three".