987654311 has 8 divisors (see below), whose sum is σ = 1150045344. Its totient is φ = 830587680.

The previous prime is 987654299. The next prime is 987654319. The reversal of 987654311 is 113456789.

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

It is a cyclic number.

It is not a de Polignac number, because 987654311 - 2¹⁰ = 987653287 is a prime.

It is a super-2 number, since 2×987654311² = 1950922076073769442, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987654319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1330700 + ... + 1331441.

It is an arithmetic number, because the mean of its divisors is an integer number (143755668).

Almost surely, 2^987654311 is an apocalyptic number.

987654311 is a deficient number, since it is larger than the sum of its proper divisors (162391033).

987654311 is a wasteful number, since it uses less digits than its factorization.

987654311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662201.

The product of its digits is 181440, while the sum is 44.

The square root of 987654311 is about 31426.9678938328. The cubic root of 987654311 is about 995.8677181002.

The spelling of 987654311 in words is "nine hundred eighty-seven million, six hundred fifty-four thousand, three hundred eleven".