87343789 has 8 divisors (see below), whose sum is σ = 94195640. Its totient is φ = 80510976.

The previous prime is 87343787. The next prime is 87343831. The reversal of 87343789 is 98734378.

It can be written as a sum of positive squares in 4 ways, for example, as 574564 + 86769225 = 758^2 + 9315^2 .

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

It is not a de Polignac number, because 87343789 - 2¹ = 87343787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87343783) 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 7 ways as a sum of consecutive naturals, for example, 5629 + ... + 14365.

It is an arithmetic number, because the mean of its divisors is an integer number (11774455).

Almost surely, 2^87343789 is an apocalyptic number.

It is an amenable number.

87343789 is a deficient number, since it is larger than the sum of its proper divisors (6851851).

87343789 is a wasteful number, since it uses less digits than its factorization.

87343789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9519.

The product of its digits is 1016064, while the sum is 49.

The square root of 87343789 is about 9345.7899077606. The cubic root of 87343789 is about 443.6876523130.

The spelling of 87343789 in words is "eighty-seven million, three hundred forty-three thousand, seven hundred eighty-nine".