4921894 has 4 divisors (see below), whose sum is σ = 7382844. Its totient is φ = 2460946.

The previous prime is 4921883. The next prime is 4921913. The reversal of 4921894 is 4981294.

It is a happy number.

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

It is an alternating number because its digits alternate between even and odd.

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, 1230472 + ... + 1230475.

It is an arithmetic number, because the mean of its divisors is an integer number (1845711).

Almost surely, 2^4921894 is an apocalyptic number.

4921894 is a deficient number, since it is larger than the sum of its proper divisors (2460950).

4921894 is a wasteful number, since it uses less digits than its factorization.

4921894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460949.

The product of its digits is 20736, while the sum is 37.

The square root of 4921894 is about 2218.5342007731. The cubic root of 4921894 is about 170.1025217815.

The spelling of 4921894 in words is "four million, nine hundred twenty-one thousand, eight hundred ninety-four".