87358389 has 4 divisors (see below), whose sum is σ = 116477856. Its totient is φ = 58238924.

The previous prime is 87358387. The next prime is 87358391. The reversal of 87358389 is 98385378.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (87358387) and next prime (87358391).

It is a cyclic number.

It is not a de Polignac number, because 87358389 - 2¹ = 87358387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87358387) 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 3 ways as a sum of consecutive naturals, for example, 14559729 + ... + 14559734.

It is an arithmetic number, because the mean of its divisors is an integer number (29119464).

Almost surely, 2^87358389 is an apocalyptic number.

It is an amenable number.

87358389 is a deficient number, since it is larger than the sum of its proper divisors (29119467).

87358389 is a wasteful number, since it uses less digits than its factorization.

87358389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29119466.

The product of its digits is 1451520, while the sum is 51.

The square root of 87358389 is about 9346.5709754968. The cubic root of 87358389 is about 443.7123725551.

The spelling of 87358389 in words is "eighty-seven million, three hundred fifty-eight thousand, three hundred eighty-nine".