87267817 has 32 divisors (see below), whose sum is σ = 119750400. Its totient is φ = 61544448.

The previous prime is 87267751. The next prime is 87267841. The reversal of 87267817 is 71876278.

It is a de Polignac number, because none of the positive numbers 2^k-87267817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87267847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27909 + ... + 30877.

It is an arithmetic number, because the mean of its divisors is an integer number (3742200).

Almost surely, 2^87267817 is an apocalyptic number.

It is an amenable number.

87267817 is a deficient number, since it is larger than the sum of its proper divisors (32482583).

87267817 is a wasteful number, since it uses less digits than its factorization.

87267817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025.

The product of its digits is 263424, while the sum is 46.

The square root of 87267817 is about 9341.7245195949. The cubic root of 87267817 is about 443.5589745272.

The spelling of 87267817 in words is "eighty-seven million, two hundred sixty-seven thousand, eight hundred seventeen".