4487969 has 2 divisors, whose sum is σ = 4487970. Its totient is φ = 4487968.

The previous prime is 4487939. The next prime is 4488007. The reversal of 4487969 is 9697844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3610000 + 877969 = 1900^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 4487969 - 2²⁰ = 3439393 is a prime.

It is a super-2 number, since 2×4487969² = 40283731489922, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4⁴ + 4¹¹ + 8 + 7³ + 9⁴ + 6⁷ + 9⁴ .

It is not a weakly prime, because it can be changed into another prime (4487939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2243984 + 2243985.

It is an arithmetic number, because the mean of its divisors is an integer number (2243985).

Almost surely, 2^4487969 is an apocalyptic number.

It is an amenable number.

4487969 is a deficient number, since it is larger than the sum of its proper divisors (1).

4487969 is an equidigital number, since it uses as much as digits as its factorization.

4487969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 4487969 is about 2118.4827117539. The cubic root of 4487969 is about 164.9490996959.

The spelling of 4487969 in words is "four million, four hundred eighty-seven thousand, nine hundred sixty-nine".