87389485 has 4 divisors (see below), whose sum is σ = 104867388. Its totient is φ = 69911584.

The previous prime is 87389483. The next prime is 87389513. The reversal of 87389485 is 58498378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64931364 + 22458121 = 8058^2 + 4739^2 .

It is a cyclic number.

It is not a de Polignac number, because 87389485 - 2¹ = 87389483 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 (87389483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8738944 + ... + 8738953.

It is an arithmetic number, because the mean of its divisors is an integer number (26216847).

Almost surely, 2^87389485 is an apocalyptic number.

It is an amenable number.

87389485 is a deficient number, since it is larger than the sum of its proper divisors (17477903).

87389485 is a wasteful number, since it uses less digits than its factorization.

87389485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17477902.

The product of its digits is 1935360, while the sum is 52.

The square root of 87389485 is about 9348.2343252616. The cubic root of 87389485 is about 443.7650141055.

The spelling of 87389485 in words is "eighty-seven million, three hundred eighty-nine thousand, four hundred eighty-five".