87964897 has 2 divisors, whose sum is σ = 87964898. Its totient is φ = 87964896.

The previous prime is 87964879. The next prime is 87964901. The reversal of 87964897 is 79846978.

It is a happy number.

Together with previous prime (87964879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76020961 + 11943936 = 8719^2 + 3456^2 .

It is a cyclic number.

It is not a de Polignac number, because 87964897 - 2¹⁵ = 87932129 is a prime.

It is not a weakly prime, because it can be changed into another prime (87964837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43982448 + 43982449.

It is an arithmetic number, because the mean of its divisors is an integer number (43982449).

Almost surely, 2^87964897 is an apocalyptic number.

It is an amenable number.

87964897 is a deficient number, since it is larger than the sum of its proper divisors (1).

87964897 is an equidigital number, since it uses as much as digits as its factorization.

87964897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 58.

The square root of 87964897 is about 9378.9603368390. The cubic root of 87964897 is about 444.7368675412.

The spelling of 87964897 in words is "eighty-seven million, nine hundred sixty-four thousand, eight hundred ninety-seven".