4643690 has 16 divisors (see below), whose sum is σ = 8398728. Its totient is φ = 1848576.

The previous prime is 4643689. The next prime is 4643711. The reversal of 4643690 is 963464.

It can be written as a sum of positive squares in 4 ways, for example, as 3568321 + 1075369 = 1889^2 + 1037^2 .

It is a super-2 number, since 2×4643690² = 43127713632200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 3326.

Almost surely, 2^4643690 is an apocalyptic number.

4643690 is a deficient number, since it is larger than the sum of its proper divisors (3755038).

4643690 is a wasteful number, since it uses less digits than its factorization.

4643690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 4643690 is about 2154.9222723801. The cubic root of 4643690 is about 166.8352205911.

The spelling of 4643690 in words is "four million, six hundred forty-three thousand, six hundred ninety".