87097009 has 2 divisors, whose sum is σ = 87097010. Its totient is φ = 87097008.

The previous prime is 87096991. The next prime is 87097027. The reversal of 87097009 is 90079078.

It is a balanced prime because it is at equal distance from previous prime (87096991) and next prime (87097027).

It can be written as a sum of positive squares in only one way, i.e., 71910400 + 15186609 = 8480^2 + 3897^2 .

It is a cyclic number.

It is not a de Polignac number, because 87097009 - 2⁹ = 87096497 is a prime.

It is not a weakly prime, because it can be changed into another prime (87097609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43548504 + 43548505.

It is an arithmetic number, because the mean of its divisors is an integer number (43548505).

Almost surely, 2^87097009 is an apocalyptic number.

It is an amenable number.

87097009 is a deficient number, since it is larger than the sum of its proper divisors (1).

87097009 is an equidigital number, since it uses as much as digits as its factorization.

87097009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 87097009 is about 9332.5778325177. The cubic root of 87097009 is about 443.2693950543.

It can be divided in two parts, 870 and 97009, that added together give a palindrome (97879).

The spelling of 87097009 in words is "eighty-seven million, ninety-seven thousand, nine".