87273499 has 4 divisors (see below), whose sum is σ = 90282960. Its totient is φ = 84264040.

The previous prime is 87273497. The next prime is 87273547. The reversal of 87273499 is 99437278.

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 87273499 - 2¹ = 87273497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87273497) 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, 1504687 + ... + 1504744.

It is an arithmetic number, because the mean of its divisors is an integer number (22570740).

Almost surely, 2^87273499 is an apocalyptic number.

87273499 is a deficient number, since it is larger than the sum of its proper divisors (3009461).

87273499 is a wasteful number, since it uses less digits than its factorization.

87273499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009460.

The product of its digits is 762048, while the sum is 49.

The square root of 87273499 is about 9342.0286340816. The cubic root of 87273499 is about 443.5686010137.

The spelling of 87273499 in words is "eighty-seven million, two hundred seventy-three thousand, four hundred ninety-nine".