4621857 has 4 divisors (see below), whose sum is σ = 6162480. Its totient is φ = 3081236.

The previous prime is 4621853. The next prime is 4621867. The reversal of 4621857 is 7581264.

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 4621857 - 2² = 4621853 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4621853) 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, 770307 + ... + 770312.

It is an arithmetic number, because the mean of its divisors is an integer number (1540620).

Almost surely, 2^4621857 is an apocalyptic number.

It is an amenable number.

4621857 is a deficient number, since it is larger than the sum of its proper divisors (1540623).

4621857 is a wasteful number, since it uses less digits than its factorization.

4621857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540622.

The product of its digits is 13440, while the sum is 33.

The square root of 4621857 is about 2149.8504599158. The cubic root of 4621857 is about 166.5733428649.

The spelling of 4621857 in words is "four million, six hundred twenty-one thousand, eight hundred fifty-seven".