87266279 has 4 divisors (see below), whose sum is σ = 87312960. Its totient is φ = 87219600.

The previous prime is 87266273. The next prime is 87266299. The reversal of 87266279 is 97266278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97266278 = 2 ⋅48633139.

It is a cyclic number.

It is not a de Polignac number, because 87266279 - 2¹² = 87262183 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 3 ways as a sum of consecutive naturals, for example, 20414 + ... + 24315.

It is an arithmetic number, because the mean of its divisors is an integer number (21828240).

Almost surely, 2^87266279 is an apocalyptic number.

87266279 is a deficient number, since it is larger than the sum of its proper divisors (46681).

87266279 is a wasteful number, since it uses less digits than its factorization.

87266279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46680.

The product of its digits is 508032, while the sum is 47.

The square root of 87266279 is about 9341.6422003843. The cubic root of 87266279 is about 443.5563687643.

Subtracting 87266279 from its reverse (97266278), we obtain a palindrome (9999999).

The spelling of 87266279 in words is "eighty-seven million, two hundred sixty-six thousand, two hundred seventy-nine".