457671421 has 4 divisors (see below), whose sum is σ = 461948832. Its totient is φ = 453394012.

The previous prime is 457671413. The next prime is 457671443. The reversal of 457671421 is 124176754.

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 457671421 - 2³ = 457671413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457671451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138545 + ... + 2138758.

It is an arithmetic number, because the mean of its divisors is an integer number (115487208).

Almost surely, 2^457671421 is an apocalyptic number.

It is an amenable number.

457671421 is a deficient number, since it is larger than the sum of its proper divisors (4277411).

457671421 is a wasteful number, since it uses less digits than its factorization.

457671421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277410.

The product of its digits is 47040, while the sum is 37.

The square root of 457671421 is about 21393.2564374852. The cubic root of 457671421 is about 770.6394985352.

The spelling of 457671421 in words is "four hundred fifty-seven million, six hundred seventy-one thousand, four hundred twenty-one".