457285639 has 2 divisors, whose sum is σ = 457285640. Its totient is φ = 457285638.

The previous prime is 457285637. The next prime is 457285729. The reversal of 457285639 is 936582754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 457285639 - 2¹ = 457285637 is a prime.

It is a super-2 number, since 2×457285639² = 418220311271276642, which contains 22 as substring.

Together with 457285637, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 457285592 and 457285601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457285637) 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, 228642819 + 228642820.

It is an arithmetic number, because the mean of its divisors is an integer number (228642820).

Almost surely, 2^457285639 is an apocalyptic number.

457285639 is a deficient number, since it is larger than the sum of its proper divisors (1).

457285639 is an equidigital number, since it uses as much as digits as its factorization.

457285639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 49.

The square root of 457285639 is about 21384.2380972528. The cubic root of 457285639 is about 770.4229076173.

The spelling of 457285639 in words is "four hundred fifty-seven million, two hundred eighty-five thousand, six hundred thirty-nine".