987278 has 8 divisors (see below), whose sum is σ = 1558920. Its totient is φ = 467640.

The previous prime is 987251. The next prime is 987293. The reversal of 987278 is 872789.

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

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987278.

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, 12953 + ... + 13028.

It is an arithmetic number, because the mean of its divisors is an integer number (194865).

2⁹⁸⁷²⁷⁸ is an apocalyptic number.

987278 is a deficient number, since it is larger than the sum of its proper divisors (571642).

987278 is a wasteful number, since it uses less digits than its factorization.

987278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26002.

The product of its digits is 56448, while the sum is 41.

The square root of 987278 is about 993.6186391166. The cubic root of 987278 is about 99.5741221890.

The spelling of 987278 in words is "nine hundred eighty-seven thousand, two hundred seventy-eight".