87389532 has 36 divisors (see below), whose sum is σ = 226292976. Its totient is φ = 28418880.

The previous prime is 87389513. The next prime is 87389539. The reversal of 87389532 is 23598378.

87389532 is a `hidden beast` number, since 87 + 38 + 9 + 532 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87389539) 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, 28128 + ... + 31079.

It is an arithmetic number, because the mean of its divisors is an integer number (6285916).

Almost surely, 2^87389532 is an apocalyptic number.

87389532 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

87389532 is an abundant number, since it is smaller than the sum of its proper divisors (138903444).

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

87389532 is a wasteful number, since it uses less digits than its factorization.

87389532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59258 (or 59253 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 87389532 is about 9348.2368391050. The cubic root of 87389532 is about 443.7650936610.

The spelling of 87389532 in words is "eighty-seven million, three hundred eighty-nine thousand, five hundred thirty-two".