87727273 has 2 divisors, whose sum is σ = 87727274. Its totient is φ = 87727272.

The previous prime is 87727231. The next prime is 87727301. The reversal of 87727273 is 37272778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87665769 + 61504 = 9363^2 + 248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87727273 is a prime.

It is not a weakly prime, because it can be changed into another prime (87727373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43863636 + 43863637.

It is an arithmetic number, because the mean of its divisors is an integer number (43863637).

Almost surely, 2^87727273 is an apocalyptic number.

It is an amenable number.

87727273 is a deficient number, since it is larger than the sum of its proper divisors (1).

87727273 is an equidigital number, since it uses as much as digits as its factorization.

87727273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230496, while the sum is 43.

The square root of 87727273 is about 9366.2838415243. The cubic root of 87727273 is about 444.3360430465.

The spelling of 87727273 in words is "eighty-seven million, seven hundred twenty-seven thousand, two hundred seventy-three".