87396229 has 2 divisors, whose sum is σ = 87396230. Its totient is φ = 87396228.

The previous prime is 87396163. The next prime is 87396289. The reversal of 87396229 is 92269378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54022500 + 33373729 = 7350^2 + 5777^2 .

It is a cyclic number.

It is not a de Polignac number, because 87396229 - 2⁹ = 87395717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87396289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43698114 + 43698115.

It is an arithmetic number, because the mean of its divisors is an integer number (43698115).

Almost surely, 2^87396229 is an apocalyptic number.

It is an amenable number.

87396229 is a deficient number, since it is larger than the sum of its proper divisors (1).

87396229 is an equidigital number, since it uses as much as digits as its factorization.

87396229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 87396229 is about 9348.5950281312. The cubic root of 87396229 is about 443.7764291870.

The spelling of 87396229 in words is "eighty-seven million, three hundred ninety-six thousand, two hundred twenty-nine".