426487 has 2 divisors, whose sum is σ = 426488. Its totient is φ = 426486.

The previous prime is 426469. The next prime is 426527. The reversal of 426487 is 784624.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426487 is a prime.

It is a super-2 number, since 2×426487² = 363782322338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213243 + 213244.

It is an arithmetic number, because the mean of its divisors is an integer number (213244).

2⁴²⁶⁴⁸⁷ is an apocalyptic number.

426487 is a deficient number, since it is larger than the sum of its proper divisors (1).

426487 is an equidigital number, since it uses as much as digits as its factorization.

426487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 31.

The square root of 426487 is about 653.0597216182. The cubic root of 426487 is about 75.2723137765.

The spelling of 426487 in words is "four hundred twenty-six thousand, four hundred eighty-seven".