427500407 has 2 divisors, whose sum is σ = 427500408. Its totient is φ = 427500406.

The previous prime is 427500389. The next prime is 427500413. The reversal of 427500407 is 704005724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427500407 - 2¹⁰ = 427499383 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427500407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427500427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213750203 + 213750204.

It is an arithmetic number, because the mean of its divisors is an integer number (213750204).

Almost surely, 2^427500407 is an apocalyptic number.

427500407 is a deficient number, since it is larger than the sum of its proper divisors (1).

427500407 is an equidigital number, since it uses as much as digits as its factorization.

427500407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 427500407 is about 20676.0829704274. The cubic root of 427500407 is about 753.3188663566.

The spelling of 427500407 in words is "four hundred twenty-seven million, five hundred thousand, four hundred seven".