87492387 has 8 divisors (see below), whose sum is σ = 123518736. Its totient is φ = 54897152.

The previous prime is 87492343. The next prime is 87492439. The reversal of 87492387 is 78329478.

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

It is a cyclic number.

It is not a de Polignac number, because 87492387 - 2¹⁸ = 87230243 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (87492187) 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, 857718 + ... + 857819.

It is an arithmetic number, because the mean of its divisors is an integer number (15439842).

Almost surely, 2^87492387 is an apocalyptic number.

87492387 is a deficient number, since it is larger than the sum of its proper divisors (36026349).

87492387 is a wasteful number, since it uses less digits than its factorization.

87492387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715557.

The product of its digits is 677376, while the sum is 48.

The square root of 87492387 is about 9353.7365261162. The cubic root of 87492387 is about 443.9391250442.

The spelling of 87492387 in words is "eighty-seven million, four hundred ninety-two thousand, three hundred eighty-seven".