4891229 has 12 divisors (see below), whose sum is σ = 5732604. Its totient is φ = 4161024.

The previous prime is 4891217. The next prime is 4891241. The reversal of 4891229 is 9221984.

It is an interprime number because it is at equal distance from previous prime (4891217) and next prime (4891241).

It can be written as a sum of positive squares in 2 ways, for example, as 4708900 + 182329 = 2170^2 + 427^2 .

It is not a de Polignac number, because 4891229 - 2⁴ = 4891213 is a prime.

It is a super-2 number, since 2×4891229² = 47848242260882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8189 + ... + 8765.

It is an arithmetic number, because the mean of its divisors is an integer number (477717).

Almost surely, 2^4891229 is an apocalyptic number.

4891229 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4891229 is a deficient number, since it is larger than the sum of its proper divisors (841375).

4891229 is a wasteful number, since it uses less digits than its factorization.

4891229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 757 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 4891229 is about 2211.6123077972. The cubic root of 4891229 is about 169.7485209068.

The spelling of 4891229 in words is "four million, eight hundred ninety-one thousand, two hundred twenty-nine".