87949550 has 48 divisors (see below), whose sum is σ = 177176160. Its totient is φ = 32288640.

The previous prime is 87949541. The next prime is 87949553. The reversal of 87949550 is 5594978.

It is a junction number, because it is equal to n+sod(n) for n = 87949495 and 87949504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87949553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174599 + ... + 175101.

It is an arithmetic number, because the mean of its divisors is an integer number (3691170).

Almost surely, 2^87949550 is an apocalyptic number.

87949550 is an abundant number, since it is smaller than the sum of its proper divisors (89226610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87949550 is a wasteful number, since it uses less digits than its factorization.

87949550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 87949550 is about 9378.1421401043. The cubic root of 87949550 is about 444.7110020202.

The spelling of 87949550 in words is "eighty-seven million, nine hundred forty-nine thousand, five hundred fifty".