4629981 has 8 divisors (see below), whose sum is σ = 6260544. Its totient is φ = 3043040.

The previous prime is 4629979. The next prime is 4629983. The reversal of 4629981 is 1899264.

It is an interprime number because it is at equal distance from previous prime (4629979) and next prime (4629983).

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

It is a cyclic number.

It is not a de Polignac number, because 4629981 - 2¹ = 4629979 is a prime.

It is a super-2 number, since 2×4629981² = 42873448120722, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4629983) by changing a digit.

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, 10656 + ... + 11081.

It is an arithmetic number, because the mean of its divisors is an integer number (782568).

Almost surely, 2^4629981 is an apocalyptic number.

It is an amenable number.

4629981 is a deficient number, since it is larger than the sum of its proper divisors (1630563).

4629981 is a wasteful number, since it uses less digits than its factorization.

4629981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21811.

The product of its digits is 31104, while the sum is 39.

The square root of 4629981 is about 2151.7390641061. The cubic root of 4629981 is about 166.6708830044.

The spelling of 4629981 in words is "four million, six hundred twenty-nine thousand, nine hundred eighty-one".