987877145 has 8 divisors (see below), whose sum is σ = 1203146304. Its totient is φ = 778505904.

The previous prime is 987877133. The next prime is 987877147. The reversal of 987877145 is 541778789.

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 987877145 - 2¹⁸ = 987615001 is a prime.

It is a super-3 number, since 3×987877145³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987877147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1474109 + ... + 1474778.

It is an arithmetic number, because the mean of its divisors is an integer number (150393288).

Almost surely, 2^987877145 is an apocalyptic number.

It is an amenable number.

987877145 is a deficient number, since it is larger than the sum of its proper divisors (215269159).

987877145 is a wasteful number, since it uses less digits than its factorization.

987877145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948959.

The product of its digits is 3951360, while the sum is 56.

The square root of 987877145 is about 31430.5129611338. The cubic root of 987877145 is about 995.9426081697.

The spelling of 987877145 in words is "nine hundred eighty-seven million, eight hundred seventy-seven thousand, one hundred forty-five".