457891943 has 4 divisors (see below), whose sum is σ = 457958520. Its totient is φ = 457825368.

The previous prime is 457891937. The next prime is 457892011. The reversal of 457891943 is 349198754.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 457891943 - 2¹² = 457887847 is a prime.

It is a super-3 number, since 3×457891943³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 457891891 and 457891900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457891043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21605 + ... + 37182.

It is an arithmetic number, because the mean of its divisors is an integer number (114489630).

Almost surely, 2^457891943 is an apocalyptic number.

457891943 is a deficient number, since it is larger than the sum of its proper divisors (66577).

457891943 is an equidigital number, since it uses as much as digits as its factorization.

457891943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66576.

The product of its digits is 1088640, while the sum is 50.

The square root of 457891943 is about 21398.4098240967. The cubic root of 457891943 is about 770.7632522941.

The spelling of 457891943 in words is "four hundred fifty-seven million, eight hundred ninety-one thousand, nine hundred forty-three".