87278343 has 8 divisors (see below), whose sum is σ = 122496000. Its totient is φ = 55123128.

The previous prime is 87278311. The next prime is 87278351. The reversal of 87278343 is 34387278.

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

It is not a de Polignac number, because 87278343 - 2⁵ = 87278311 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a junction number, because it is equal to n+sod(n) for n = 87278295 and 87278304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87278393) 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, 765543 + ... + 765656.

It is an arithmetic number, because the mean of its divisors is an integer number (15312000).

Almost surely, 2^87278343 is an apocalyptic number.

87278343 is a deficient number, since it is larger than the sum of its proper divisors (35217657).

87278343 is a wasteful number, since it uses less digits than its factorization.

87278343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531221.

The product of its digits is 225792, while the sum is 42.

The square root of 87278343 is about 9342.2878889488. The cubic root of 87278343 is about 443.5768074245.

The spelling of 87278343 in words is "eighty-seven million, two hundred seventy-eight thousand, three hundred forty-three".