427457 has 2 divisors, whose sum is σ = 427458. Its totient is φ = 427456.

The previous prime is 427451. The next prime is 427477. The reversal of 427457 is 754724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274576 + 152881 = 524^2 + 391^2 .

It is a cyclic number.

It is not a de Polignac number, because 427457 - 2¹⁸ = 165313 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (427451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213728 + 213729.

It is an arithmetic number, because the mean of its divisors is an integer number (213729).

2⁴²⁷⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

427457 is a deficient number, since it is larger than the sum of its proper divisors (1).

427457 is an equidigital number, since it uses as much as digits as its factorization.

427457 is an evil number, because the sum of its binary digits is even.

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

The square root of 427457 is about 653.8019577823. The cubic root of 427457 is about 75.3293368978.

The spelling of 427457 in words is "four hundred twenty-seven thousand, four hundred fifty-seven".