87351309 has 12 divisors (see below), whose sum is σ = 131660256. Its totient is φ = 55702152.

The previous prime is 87351301. The next prime is 87351311. The reversal of 87351309 is 90315378.

It is not a de Polignac number, because 87351309 - 2³ = 87351301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87351301) 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 11 ways as a sum of consecutive naturals, for example, 210787 + ... + 211200.

It is an arithmetic number, because the mean of its divisors is an integer number (10971688).

Almost surely, 2^87351309 is an apocalyptic number.

It is an amenable number.

87351309 is a deficient number, since it is larger than the sum of its proper divisors (44308947).

87351309 is a wasteful number, since it uses less digits than its factorization.

87351309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422016 (or 422013 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 87351309 is about 9346.1922192944. The cubic root of 87351309 is about 443.7003852748.

The spelling of 87351309 in words is "eighty-seven million, three hundred fifty-one thousand, three hundred nine".