4921864 has 8 divisors (see below), whose sum is σ = 9228510. Its totient is φ = 2460928.

The previous prime is 4921853. The next prime is 4921871. The reversal of 4921864 is 4681294.

It can be written as a sum of positive squares in only one way, i.e., 3802500 + 1119364 = 1950^2 + 1058^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307609 + ... + 307624.

Almost surely, 2^4921864 is an apocalyptic number.

It is an amenable number.

4921864 is a deficient number, since it is larger than the sum of its proper divisors (4306646).

4921864 is a wasteful number, since it uses less digits than its factorization.

4921864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615239 (or 615235 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 4921864 is about 2218.5274395418. The cubic root of 4921864 is about 170.1021761770.

The spelling of 4921864 in words is "four million, nine hundred twenty-one thousand, eight hundred sixty-four".