87064277 has 2 divisors, whose sum is σ = 87064278. Its totient is φ = 87064276.

The previous prime is 87064267. The next prime is 87064283. The reversal of 87064277 is 77246078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48636676 + 38427601 = 6974^2 + 6199^2 .

It is a cyclic number.

It is not a de Polignac number, because 87064277 - 2²⁰ = 86015701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87064217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43532138 + 43532139.

It is an arithmetic number, because the mean of its divisors is an integer number (43532139).

Almost surely, 2^87064277 is an apocalyptic number.

It is an amenable number.

87064277 is a deficient number, since it is larger than the sum of its proper divisors (1).

87064277 is an equidigital number, since it uses as much as digits as its factorization.

87064277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 87064277 is about 9330.8240257761. The cubic root of 87064277 is about 443.2138596157.

The spelling of 87064277 in words is "eighty-seven million, sixty-four thousand, two hundred seventy-seven".