4630649 has 4 divisors (see below), whose sum is σ = 4654836. Its totient is φ = 4606464.

The previous prime is 4630643. The next prime is 4630651. The reversal of 4630649 is 9460364.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 354025 + 4276624 = 595^2 + 2068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4630649 is a prime.

It is a super-2 number, since 2×4630649² = 42885820322402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4630643) 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 3 ways as a sum of consecutive naturals, for example, 11804 + ... + 12189.

It is an arithmetic number, because the mean of its divisors is an integer number (1163709).

Almost surely, 2^4630649 is an apocalyptic number.

It is an amenable number.

4630649 is a deficient number, since it is larger than the sum of its proper divisors (24187).

4630649 is a wasteful number, since it uses less digits than its factorization.

4630649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24186.

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

The square root of 4630649 is about 2151.8942817899. The cubic root of 4630649 is about 166.6788982134.

The spelling of 4630649 in words is "four million, six hundred thirty thousand, six hundred forty-nine".