87973544 has 16 divisors (see below), whose sum is σ = 167274720. Its totient is φ = 43366960.

The previous prime is 87973507. The next prime is 87973549. The reversal of 87973544 is 44537978.

It is not an unprimeable number, because it can be changed into a prime (87973549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76874 + ... + 78009.

It is an arithmetic number, because the mean of its divisors is an integer number (10454670).

Almost surely, 2^87973544 is an apocalyptic number.

It is an amenable number.

87973544 is a deficient number, since it is larger than the sum of its proper divisors (79301176).

87973544 is a wasteful number, since it uses less digits than its factorization.

87973544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154960 (or 154956 counting only the distinct ones).

The product of its digits is 846720, while the sum is 47.

The square root of 87973544 is about 9379.4213041104. The cubic root of 87973544 is about 444.7514396938.

The spelling of 87973544 in words is "eighty-seven million, nine hundred seventy-three thousand, five hundred forty-four".