427907243 has 2 divisors, whose sum is σ = 427907244. Its totient is φ = 427907242.

The previous prime is 427907173. The next prime is 427907251. The reversal of 427907243 is 342709724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427907243 - 2¹⁶ = 427841707 is a prime.

It is a super-2 number, since 2×427907243² = 366209217223722098, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 427907197 and 427907206.

It is not a weakly prime, because it can be changed into another prime (427907143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213953621 + 213953622.

It is an arithmetic number, because the mean of its divisors is an integer number (213953622).

Almost surely, 2^427907243 is an apocalyptic number.

427907243 is a deficient number, since it is larger than the sum of its proper divisors (1).

427907243 is an equidigital number, since it uses as much as digits as its factorization.

427907243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 427907243 is about 20685.9189546899. The cubic root of 427907243 is about 753.5577589672.

The spelling of 427907243 in words is "four hundred twenty-seven million, nine hundred seven thousand, two hundred forty-three".