87385005 has 12 divisors (see below), whose sum is σ = 151467420. Its totient is φ = 46605312.

The previous prime is 87384977. The next prime is 87385013. The reversal of 87385005 is 50058378.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66536649 + 20848356 = 8157^2 + 4566^2 .

It is not a de Polignac number, because 87385005 - 2¹³ = 87376813 is a prime.

It is a super-2 number, since 2×87385005² = 15272278197700050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 970900 + ... + 970989.

It is an arithmetic number, because the mean of its divisors is an integer number (12622285).

Almost surely, 2^87385005 is an apocalyptic number.

It is an amenable number.

87385005 is a deficient number, since it is larger than the sum of its proper divisors (64082415).

87385005 is a wasteful number, since it uses less digits than its factorization.

87385005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941900 (or 1941897 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 87385005 is about 9347.9947047482. The cubic root of 87385005 is about 443.7574308086.

The spelling of 87385005 in words is "eighty-seven million, three hundred eighty-five thousand, five".