87557385 has 24 divisors (see below), whose sum is σ = 141575616. Its totient is φ = 46207360.

The previous prime is 87557347. The next prime is 87557401. The reversal of 87557385 is 58375578.

It is a happy number.

It is not a de Polignac number, because 87557385 - 2⁷ = 87557257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281380 + ... + 281690.

It is an arithmetic number, because the mean of its divisors is an integer number (5898984).

Almost surely, 2^87557385 is an apocalyptic number.

It is an amenable number.

87557385 is a deficient number, since it is larger than the sum of its proper divisors (54018231).

87557385 is a wasteful number, since it uses less digits than its factorization.

87557385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 456 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 48.

The square root of 87557385 is about 9357.2103214580. The cubic root of 87557385 is about 444.0490317980.

The spelling of 87557385 in words is "eighty-seven million, five hundred fifty-seven thousand, three hundred eighty-five".