87740016 has 160 divisors (see below), whose sum is σ = 284981760. Its totient is φ = 22643712.

The previous prime is 87740011. The next prime is 87740017. The reversal of 87740016 is 61004778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87740011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231315 + ... + 231693.

It is an arithmetic number, because the mean of its divisors is an integer number (1781136).

Almost surely, 2^87740016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87740016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142490880).

87740016 is an abundant number, since it is smaller than the sum of its proper divisors (197241744).

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

87740016 is a wasteful number, since it uses less digits than its factorization.

87740016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 87740016 is about 9366.9640759426. The cubic root of 87740016 is about 444.3575563109.

The spelling of 87740016 in words is "eighty-seven million, seven hundred forty thousand, sixteen".