87247078 has 8 divisors (see below), whose sum is σ = 131167368. Its totient is φ = 43524624.

The previous prime is 87247067. The next prime is 87247093. The reversal of 87247078 is 87074278.

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

It is a super-2 number, since 2×87247078² = 15224105239076168, which contains 22 as substring.

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, 48351 + ... + 50122.

It is an arithmetic number, because the mean of its divisors is an integer number (16395921).

Almost surely, 2^87247078 is an apocalyptic number.

87247078 is a deficient number, since it is larger than the sum of its proper divisors (43920290).

87247078 is a wasteful number, since it uses less digits than its factorization.

87247078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98918.

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 87247078 is about 9340.6144337511. The cubic root of 87247078 is about 443.5238348132.

The spelling of 87247078 in words is "eighty-seven million, two hundred forty-seven thousand, seventy-eight".