87097277 has 2 divisors, whose sum is σ = 87097278. Its totient is φ = 87097276.

The previous prime is 87097247. The next prime is 87097279. The reversal of 87097277 is 77279078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 14182756 = 8539^2 + 3766^2 .

It is a cyclic number.

It is not a de Polignac number, because 87097277 - 2¹⁶ = 87031741 is a prime.

Together with 87097279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87097279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43548638 + 43548639.

It is an arithmetic number, because the mean of its divisors is an integer number (43548639).

Almost surely, 2^87097277 is an apocalyptic number.

It is an amenable number.

87097277 is a deficient number, since it is larger than the sum of its proper divisors (1).

87097277 is an equidigital number, since it uses as much as digits as its factorization.

87097277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 47.

The square root of 87097277 is about 9332.5921908117. The cubic root of 87097277 is about 443.2698497047.

The spelling of 87097277 in words is "eighty-seven million, ninety-seven thousand, two hundred seventy-seven".