268220087 has 2 divisors, whose sum is σ = 268220088. Its totient is φ = 268220086.

The previous prime is 268220081. The next prime is 268220119. The reversal of 268220087 is 780022862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268220087 - 2²⁰ = 267171511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268220081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134110043 + 134110044.

It is an arithmetic number, because the mean of its divisors is an integer number (134110044).

Almost surely, 2^268220087 is an apocalyptic number.

268220087 is a deficient number, since it is larger than the sum of its proper divisors (1).

268220087 is an equidigital number, since it uses as much as digits as its factorization.

268220087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 268220087 is about 16377.4261408806. The cubic root of 268220087 is about 644.9070130158.

The spelling of 268220087 in words is "two hundred sixty-eight million, two hundred twenty thousand, eighty-seven".