87389752 has 8 divisors (see below), whose sum is σ = 163855800. Its totient is φ = 43694872.

The previous prime is 87389749. The next prime is 87389767. The reversal of 87389752 is 25798378.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 87389696 and 87389705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5461852 + ... + 5461867.

It is an arithmetic number, because the mean of its divisors is an integer number (20481975).

Almost surely, 2^87389752 is an apocalyptic number.

It is an amenable number.

87389752 is a deficient number, since it is larger than the sum of its proper divisors (76466048).

87389752 is a wasteful number, since it uses less digits than its factorization.

87389752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10923725 (or 10923721 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 87389752 is about 9348.2486060224. The cubic root of 87389752 is about 443.7654660483.

The spelling of 87389752 in words is "eighty-seven million, three hundred eighty-nine thousand, seven hundred fifty-two".