87710380 has 12 divisors (see below), whose sum is σ = 184191840. Its totient is φ = 35084144.

The previous prime is 87710351. The next prime is 87710383. The reversal of 87710380 is 8301778.

It is a happy number.

It is a super-2 number, since 2×87710380² = 15386221519488800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87710383) 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, 2192740 + ... + 2192779.

It is an arithmetic number, because the mean of its divisors is an integer number (15349320).

Almost surely, 2^87710380 is an apocalyptic number.

It is an amenable number.

87710380 is an abundant number, since it is smaller than the sum of its proper divisors (96481460).

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

87710380 is a wasteful number, since it uses less digits than its factorization.

87710380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385528 (or 4385526 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 87710380 is about 9365.3819996837. The cubic root of 87710380 is about 444.3075203672.

The spelling of 87710380 in words is "eighty-seven million, seven hundred ten thousand, three hundred eighty".