87008138 has 16 divisors (see below), whose sum is σ = 149429184. Its totient is φ = 37221120.

The previous prime is 87008123. The next prime is 87008147. The reversal of 87008138 is 83180078.

It is a junction number, because it is equal to n+sod(n) for n = 87008098 and 87008107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2693 + ... + 13463.

It is an arithmetic number, because the mean of its divisors is an integer number (9339324).

Almost surely, 2^87008138 is an apocalyptic number.

87008138 is a deficient number, since it is larger than the sum of its proper divisors (62421046).

87008138 is a wasteful number, since it uses less digits than its factorization.

87008138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11357.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 87008138 is about 9327.8152854782. The cubic root of 87008138 is about 443.1185777790.

The spelling of 87008138 in words is "eighty-seven million, eight thousand, one hundred thirty-eight".