987277331 has 8 divisors (see below), whose sum is σ = 1003093680. Its totient is φ = 971523072.

The previous prime is 987277307. The next prime is 987277393. The reversal of 987277331 is 133772789.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987277331 is a prime.

It is a super-2 number, since 2×987277331² = 1949433056612967122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987277531) 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, 17075 + ... + 47603.

It is an arithmetic number, because the mean of its divisors is an integer number (125386710).

Almost surely, 2^987277331 is an apocalyptic number.

987277331 is a deficient number, since it is larger than the sum of its proper divisors (15816349).

987277331 is a wasteful number, since it uses less digits than its factorization.

987277331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31045.

The product of its digits is 444528, while the sum is 47.

The square root of 987277331 is about 31420.9696062995. The cubic root of 987277331 is about 995.7409969781.

The spelling of 987277331 in words is "nine hundred eighty-seven million, two hundred seventy-seven thousand, three hundred thirty-one".