87348487 has 4 divisors (see below), whose sum is σ = 88164936. Its totient is φ = 86532040.

The previous prime is 87348461. The next prime is 87348553. The reversal of 87348487 is 78484378.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87348487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87348487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87348407) 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 3 ways as a sum of consecutive naturals, for example, 408064 + ... + 408277.

It is an arithmetic number, because the mean of its divisors is an integer number (22041234).

Almost surely, 2^87348487 is an apocalyptic number.

87348487 is a deficient number, since it is larger than the sum of its proper divisors (816449).

87348487 is a wasteful number, since it uses less digits than its factorization.

87348487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816448.

The product of its digits is 1204224, while the sum is 49.

The square root of 87348487 is about 9346.0412475015. The cubic root of 87348487 is about 443.6956071134.

The spelling of 87348487 in words is "eighty-seven million, three hundred forty-eight thousand, four hundred eighty-seven".