87005830 has 32 divisors (see below), whose sum is σ = 166297536. Its totient is φ = 32661504.

The previous prime is 87005827. The next prime is 87005837. The reversal of 87005830 is 3850078.

It is a junction number, because it is equal to n+sod(n) for n = 87005792 and 87005801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87005837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97647 + ... + 98533.

It is an arithmetic number, because the mean of its divisors is an integer number (5196798).

Almost surely, 2^87005830 is an apocalyptic number.

87005830 is a deficient number, since it is larger than the sum of its proper divisors (79291706).

87005830 is a wasteful number, since it uses less digits than its factorization.

87005830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 87005830 is about 9327.6915686573. The cubic root of 87005830 is about 443.1146596524.

The spelling of 87005830 in words is "eighty-seven million, five thousand, eight hundred thirty".