87281373 has 8 divisors (see below), whose sum is σ = 116531136. Its totient is φ = 58109600.

The previous prime is 87281353. The next prime is 87281377. The reversal of 87281373 is 37318278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87281373 - 2¹² = 87277277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87281377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16833 + ... + 21398.

It is an arithmetic number, because the mean of its divisors is an integer number (14566392).

Almost surely, 2^87281373 is an apocalyptic number.

It is an amenable number.

87281373 is a deficient number, since it is larger than the sum of its proper divisors (29249763).

87281373 is a wasteful number, since it uses less digits than its factorization.

87281373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38995.

The product of its digits is 56448, while the sum is 39.

The square root of 87281373 is about 9342.4500533854. The cubic root of 87281373 is about 443.5819405122.

It can be divided in two parts, 8728 and 1373, that added together give a palindrome (10101).

The spelling of 87281373 in words is "eighty-seven million, two hundred eighty-one thousand, three hundred seventy-three".