4487690 has 8 divisors (see below), whose sum is σ = 8077860. Its totient is φ = 1795072.

The previous prime is 4487683. The next prime is 4487699. The reversal of 4487690 is 967844.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3690241 + 797449 = 1921^2 + 893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4487690² = 40278723072200, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4487699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224375 + ... + 224394.

Almost surely, 2^4487690 is an apocalyptic number.

4487690 is a deficient number, since it is larger than the sum of its proper divisors (3590170).

4487690 is a wasteful number, since it uses less digits than its factorization.

4487690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448776.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 4487690 is about 2118.4168617154. The cubic root of 4487690 is about 164.9456815386.

The spelling of 4487690 in words is "four million, four hundred eighty-seven thousand, six hundred ninety".