987722 has 16 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 469920.

The previous prime is 987713. The next prime is 987739. The reversal of 987722 is 227789.

It is a nialpdrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987722.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5429 + ... + 5607.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2⁹⁸⁷⁷²² is an apocalyptic number.

987722 is a deficient number, since it is larger than the sum of its proper divisors (567478).

987722 is a wasteful number, since it uses less digits than its factorization.

987722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301.

The product of its digits is 14112, while the sum is 35.

The square root of 987722 is about 993.8420397629. The cubic root of 987722 is about 99.5890468216.

The spelling of 987722 in words is "nine hundred eighty-seven thousand, seven hundred twenty-two".