87442998 has 8 divisors (see below), whose sum is σ = 174886008. Its totient is φ = 29147664.

The previous prime is 87442969. The next prime is 87443003. The reversal of 87442998 is 89924478.

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

87442998 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 87442998.

It is a congruent number.

It is an unprimeable number.

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, 7286911 + ... + 7286922.

It is an arithmetic number, because the mean of its divisors is an integer number (21860751).

Almost surely, 2^87442998 is an apocalyptic number.

87442998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87442998 is a wasteful number, since it uses less digits than its factorization.

87442998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14573838.

The product of its digits is 1161216, while the sum is 51.

The square root of 87442998 is about 9351.0960854864. The cubic root of 87442998 is about 443.8555755411.

The spelling of 87442998 in words is "eighty-seven million, four hundred forty-two thousand, nine hundred ninety-eight".