4643894 has 4 divisors (see below), whose sum is σ = 6965844. Its totient is φ = 2321946.

The previous prime is 4643867. The next prime is 4643909. The reversal of 4643894 is 4983464.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160972 + ... + 1160975.

It is an arithmetic number, because the mean of its divisors is an integer number (1741461).

Almost surely, 2^4643894 is an apocalyptic number.

4643894 is a deficient number, since it is larger than the sum of its proper divisors (2321950).

4643894 is a wasteful number, since it uses less digits than its factorization.

4643894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321949.

The product of its digits is 82944, while the sum is 38.

The square root of 4643894 is about 2154.9696053541. The cubic root of 4643894 is about 166.8376636114.

The spelling of 4643894 in words is "four million, six hundred forty-three thousand, eight hundred ninety-four".