87002273 has 4 divisors (see below), whose sum is σ = 91581360. Its totient is φ = 82423188.

The previous prime is 87002249. The next prime is 87002297. The reversal of 87002273 is 37220078.

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 an interprime number because it is at equal distance from previous prime (87002249) and next prime (87002297).

It is a cyclic number.

It is not a de Polignac number, because 87002273 - 2¹⁶ = 86936737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87002173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2289515 + ... + 2289552.

It is an arithmetic number, because the mean of its divisors is an integer number (22895340).

Almost surely, 2^87002273 is an apocalyptic number.

It is an amenable number.

87002273 is a deficient number, since it is larger than the sum of its proper divisors (4579087).

87002273 is a wasteful number, since it uses less digits than its factorization.

87002273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579086.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 87002273 is about 9327.5008978826. The cubic root of 87002273 is about 443.1086210519.

The spelling of 87002273 in words is "eighty-seven million, two thousand, two hundred seventy-three".