87785275 has 12 divisors (see below), whose sum is σ = 111796912. Its totient is φ = 68329440.

The previous prime is 87785251. The next prime is 87785279. The reversal of 87785275 is 57258778.

It is a happy number.

It is not a de Polignac number, because 87785275 - 2⁷ = 87785147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87785279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46527 + ... + 48376.

Almost surely, 2^87785275 is an apocalyptic number.

87785275 is a deficient number, since it is larger than the sum of its proper divisors (24011637).

87785275 is a wasteful number, since it uses less digits than its factorization.

87785275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94950 (or 94945 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 49.

The square root of 87785275 is about 9369.3796486214. The cubic root of 87785275 is about 444.4339476109.

The spelling of 87785275 in words is "eighty-seven million, seven hundred eighty-five thousand, two hundred seventy-five".