427617803 has 2 divisors, whose sum is σ = 427617804. Its totient is φ = 427617802.

The previous prime is 427617737. The next prime is 427617809. The reversal of 427617803 is 308716724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427617803 - 2¹⁰ = 427616779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427617809) 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, 213808901 + 213808902.

It is an arithmetic number, because the mean of its divisors is an integer number (213808902).

Almost surely, 2^427617803 is an apocalyptic number.

427617803 is a deficient number, since it is larger than the sum of its proper divisors (1).

427617803 is an equidigital number, since it uses as much as digits as its factorization.

427617803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 427617803 is about 20678.9217078648. The cubic root of 427617803 is about 753.3878164100.

The spelling of 427617803 in words is "four hundred twenty-seven million, six hundred seventeen thousand, eight hundred three".