87262249 has 2 divisors, whose sum is σ = 87262250. Its totient is φ = 87262248.

The previous prime is 87262237. The next prime is 87262261. The reversal of 87262249 is 94226278.

It is a balanced prime because it is at equal distance from previous prime (87262237) and next prime (87262261).

It can be written as a sum of positive squares in only one way, i.e., 82682649 + 4579600 = 9093^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 87262249 - 2²¹ = 85165097 is a prime.

It is a super-2 number, since 2×87262249² = 15229400201076002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87268249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43631124 + 43631125.

It is an arithmetic number, because the mean of its divisors is an integer number (43631125).

Almost surely, 2^87262249 is an apocalyptic number.

It is an amenable number.

87262249 is a deficient number, since it is larger than the sum of its proper divisors (1).

87262249 is an equidigital number, since it uses as much as digits as its factorization.

87262249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 87262249 is about 9341.4264970614. The cubic root of 87262249 is about 443.5495407749.

The spelling of 87262249 in words is "eighty-seven million, two hundred sixty-two thousand, two hundred forty-nine".