87266277 has 12 divisors (see below), whose sum is σ = 144058720. Its totient is φ = 49866408.

The previous prime is 87266273. The next prime is 87266299. The reversal of 87266277 is 77266278.

It is a happy number.

It is not a de Polignac number, because 87266277 - 2² = 87266273 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87266273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 692527 + ... + 692652.

Almost surely, 2^87266277 is an apocalyptic number.

It is an amenable number.

87266277 is a deficient number, since it is larger than the sum of its proper divisors (56792443).

87266277 is a wasteful number, since it uses less digits than its factorization.

87266277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385192 (or 1385189 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 87266277 is about 9341.6420933367. The cubic root of 87266277 is about 443.5563653758.

Subtracting from 87266277 its reverse (77266278), we obtain a palindrome (9999999).

The spelling of 87266277 in words is "eighty-seven million, two hundred sixty-six thousand, two hundred seventy-seven".