87278842 has 8 divisors (see below), whose sum is σ = 149620896. Its totient is φ = 37405212.

The previous prime is 87278831. The next prime is 87278869. The reversal of 87278842 is 24887278.

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

It is a junction number, because it is equal to n+sod(n) for n = 87278792 and 87278801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3117088 + ... + 3117115.

It is an arithmetic number, because the mean of its divisors is an integer number (18702612).

Almost surely, 2^87278842 is an apocalyptic number.

87278842 is a deficient number, since it is larger than the sum of its proper divisors (62342054).

87278842 is a wasteful number, since it uses less digits than its factorization.

87278842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234212.

The product of its digits is 401408, while the sum is 46.

The square root of 87278842 is about 9342.3145954308. The cubic root of 87278842 is about 443.5776527828.

The spelling of 87278842 in words is "eighty-seven million, two hundred seventy-eight thousand, eight hundred forty-two".