987267550 has 24 divisors (see below), whose sum is σ = 1932967800. Its totient is φ = 374122080.

The previous prime is 987267527. The next prime is 987267551. The reversal of 987267550 is 55762789.

It is a junction number, because it is equal to n+sod(n) for n = 987267494 and 987267503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987267551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 518665 + ... + 520564.

It is an arithmetic number, because the mean of its divisors is an integer number (80540325).

Almost surely, 2^987267550 is an apocalyptic number.

987267550 is a deficient number, since it is larger than the sum of its proper divisors (945700250).

987267550 is a wasteful number, since it uses less digits than its factorization.

987267550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039260 (or 1039255 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 49.

The square root of 987267550 is about 31420.8139614492. The cubic root of 987267550 is about 995.7377086839.

It can be divided in two parts, 98726 and 7550, that added together give a square (106276 = 326²).

The spelling of 987267550 in words is "nine hundred eighty-seven million, two hundred sixty-seven thousand, five hundred fifty".