457681853 has 4 divisors (see below), whose sum is σ = 477581088. Its totient is φ = 437782620.

The previous prime is 457681843. The next prime is 457681859. The reversal of 457681853 is 358186754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 457681853 - 2¹⁸ = 457419709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 457681798 and 457681807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457681859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9949583 + ... + 9949628.

It is an arithmetic number, because the mean of its divisors is an integer number (119395272).

Almost surely, 2^457681853 is an apocalyptic number.

It is an amenable number.

457681853 is a deficient number, since it is larger than the sum of its proper divisors (19899235).

457681853 is a wasteful number, since it uses less digits than its factorization.

457681853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19899234.

The product of its digits is 806400, while the sum is 47.

The square root of 457681853 is about 21393.5002512445. The cubic root of 457681853 is about 770.6453537185.

The spelling of 457681853 in words is "four hundred fifty-seven million, six hundred eighty-one thousand, eight hundred fifty-three".