87549345 has 48 divisors (see below), whose sum is σ = 165044880. Its totient is φ = 42674688.

The previous prime is 87549317. The next prime is 87549367. The reversal of 87549345 is 54394578.

It can be written as a sum of positive squares in 8 ways, for example, as 2614689 + 84934656 = 1617^2 + 9216^2 .

It is not a de Polignac number, because 87549345 - 2⁸ = 87549089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 87549345.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63079 + ... + 64451.

It is an arithmetic number, because the mean of its divisors is an integer number (3438435).

Almost surely, 2^87549345 is an apocalyptic number.

It is an amenable number.

87549345 is a deficient number, since it is larger than the sum of its proper divisors (77495535).

87549345 is a wasteful number, since it uses less digits than its factorization.

87549345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1503 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 87549345 is about 9356.7806963720. The cubic root of 87549345 is about 444.0354397083.

The spelling of 87549345 in words is "eighty-seven million, five hundred forty-nine thousand, three hundred forty-five".