4891864 has 8 divisors (see below), whose sum is σ = 9172260. Its totient is φ = 2445928.

The previous prime is 4891853. The next prime is 4891879. The reversal of 4891864 is 4681984.

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

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, 305734 + ... + 305749.

Almost surely, 2^4891864 is an apocalyptic number.

It is an amenable number.

4891864 is a deficient number, since it is larger than the sum of its proper divisors (4280396).

4891864 is a wasteful number, since it uses less digits than its factorization.

4891864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611489 (or 611485 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 4891864 is about 2211.7558635618. The cubic root of 4891864 is about 169.7558664122.

The spelling of 4891864 in words is "four million, eight hundred ninety-one thousand, eight hundred sixty-four".