4629861 has 6 divisors (see below), whose sum is σ = 6687590. Its totient is φ = 3086568.

The previous prime is 4629841. The next prime is 4629871. The reversal of 4629861 is 1689264.

It can be written as a sum of positive squares in only one way, i.e., 4384836 + 245025 = 2094^2 + 495^2 .

It is not a de Polignac number, because 4629861 - 2⁹ = 4629349 is a prime.

It is a super-2 number, since 2×4629861² = 42871225758642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4629841) 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 5 ways as a sum of consecutive naturals, for example, 257206 + ... + 257223.

Almost surely, 2^4629861 is an apocalyptic number.

It is an amenable number.

4629861 is a deficient number, since it is larger than the sum of its proper divisors (2057729).

4629861 is a wasteful number, since it uses less digits than its factorization.

4629861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514435 (or 514432 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 4629861 is about 2151.7111795034. The cubic root of 4629861 is about 166.6694430649.

The spelling of 4629861 in words is "four million, six hundred twenty-nine thousand, eight hundred sixty-one".