4821457 has 4 divisors (see below), whose sum is σ = 4850496. Its totient is φ = 4792420.

The previous prime is 4821451. The next prime is 4821473. The reversal of 4821457 is 7541284.

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 a de Polignac number, because none of the positive numbers 2^k-4821457 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4821451) 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, 14269 + ... + 14602.

It is an arithmetic number, because the mean of its divisors is an integer number (1212624).

Almost surely, 2^4821457 is an apocalyptic number.

It is an amenable number.

4821457 is a deficient number, since it is larger than the sum of its proper divisors (29039).

4821457 is a wasteful number, since it uses less digits than its factorization.

4821457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29038.

The product of its digits is 8960, while the sum is 31.

The square root of 4821457 is about 2195.7816375951. The cubic root of 4821457 is about 168.9375141004.

The spelling of 4821457 in words is "four million, eight hundred twenty-one thousand, four hundred fifty-seven".