87186052 has 6 divisors (see below), whose sum is σ = 152575598. Its totient is φ = 43593024.

The previous prime is 87185999. The next prime is 87186053. The reversal of 87186052 is 25068178.

It can be written as a sum of positive squares in only one way, i.e., 46430596 + 40755456 = 6814^2 + 6384^2 .

It is not an unprimeable number, because it can be changed into a prime (87186053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10898253 + ... + 10898260.

Almost surely, 2^87186052 is an apocalyptic number.

It is an amenable number.

87186052 is a deficient number, since it is larger than the sum of its proper divisors (65389546).

87186052 is a wasteful number, since it uses less digits than its factorization.

87186052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21796517 (or 21796515 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 87186052 is about 9337.3471607304. The cubic root of 87186052 is about 443.4204013639.

The spelling of 87186052 in words is "eighty-seven million, one hundred eighty-six thousand, fifty-two".