87070000 has 50 divisors (see below), whose sum is σ = 210829388. Its totient is φ = 34824000.

The previous prime is 87069953. The next prime is 87070001. The reversal of 87070000 is 7078.

It is a tau number, because it is divible by the number of its divisors (50).

It is not an unprimeable number, because it can be changed into a prime (87070001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5647 + ... + 14353.

Almost surely, 2^87070000 is an apocalyptic number.

87070000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87070000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105414694).

87070000 is an abundant number, since it is smaller than the sum of its proper divisors (123759388).

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

87070000 is an equidigital number, since it uses as much as digits as its factorization.

87070000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735 (or 8714 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 87070000 is about 9331.1306924724. The cubic root of 87070000 is about 443.2235706684.

Adding to 87070000 its reverse (7078), we get a palindrome (87077078).

The spelling of 87070000 in words is "eighty-seven million, seventy thousand".