427636747 has 2 divisors, whose sum is σ = 427636748. Its totient is φ = 427636746.

The previous prime is 427636721. The next prime is 427636771. The reversal of 427636747 is 747636724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427636747 - 2¹⁹ = 427112459 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 427636697 and 427636706.

It is not a weakly prime, because it can be changed into another prime (427636147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213818373 + 213818374.

It is an arithmetic number, because the mean of its divisors is an integer number (213818374).

Almost surely, 2^427636747 is an apocalyptic number.

427636747 is a deficient number, since it is larger than the sum of its proper divisors (1).

427636747 is an equidigital number, since it uses as much as digits as its factorization.

427636747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 46.

The square root of 427636747 is about 20679.3797537547. The cubic root of 427636747 is about 753.3989415846.

The spelling of 427636747 in words is "four hundred twenty-seven million, six hundred thirty-six thousand, seven hundred forty-seven".