4891284 has 36 divisors (see below), whose sum is σ = 13016640. Its totient is φ = 1544400.

The previous prime is 4891283. The next prime is 4891297. The reversal of 4891284 is 4821984.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2892 + ... + 4259.

Almost surely, 2^4891284 is an apocalyptic number.

It is an amenable number.

4891284 is an abundant number, since it is smaller than the sum of its proper divisors (8125356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4891284 is a wasteful number, since it uses less digits than its factorization.

4891284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7180 (or 7175 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 4891284 is about 2211.6247421296. The cubic root of 4891284 is about 169.7491571568.

The spelling of 4891284 in words is "four million, eight hundred ninety-one thousand, two hundred eighty-four".