427121027 has 2 divisors, whose sum is σ = 427121028. Its totient is φ = 427121026.

The previous prime is 427120997. The next prime is 427121041. The reversal of 427121027 is 720121724.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427121027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427120987 and 427121005.

It is not a weakly prime, because it can be changed into another prime (427126027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213560513 + 213560514.

It is an arithmetic number, because the mean of its divisors is an integer number (213560514).

Almost surely, 2^427121027 is an apocalyptic number.

427121027 is a deficient number, since it is larger than the sum of its proper divisors (1).

427121027 is an equidigital number, since it uses as much as digits as its factorization.

427121027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 427121027 is about 20666.9065658119. The cubic root of 427121027 is about 753.0959592046.

The spelling of 427121027 in words is "four hundred twenty-seven million, one hundred twenty-one thousand, twenty-seven".