87269293 has 2 divisors, whose sum is σ = 87269294. Its totient is φ = 87269292.

The previous prime is 87269263. The next prime is 87269321. The reversal of 87269293 is 39296278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58400164 + 28869129 = 7642^2 + 5373^2 .

It is a cyclic number.

It is not a de Polignac number, because 87269293 - 2¹³ = 87261101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87269213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43634646 + 43634647.

It is an arithmetic number, because the mean of its divisors is an integer number (43634647).

Almost surely, 2^87269293 is an apocalyptic number.

It is an amenable number.

87269293 is a deficient number, since it is larger than the sum of its proper divisors (1).

87269293 is an equidigital number, since it uses as much as digits as its factorization.

87269293 is an odious number, because the sum of its binary digits is odd.

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

The square root of 87269293 is about 9341.8035196636. The cubic root of 87269293 is about 443.5614752175.

The spelling of 87269293 in words is "eighty-seven million, two hundred sixty-nine thousand, two hundred ninety-three".