4653981 has 12 divisors (see below), whose sum is σ = 7015008. Its totient is φ = 2967624.

The previous prime is 4653977. The next prime is 4653989. The reversal of 4653981 is 1893564.

4653981 is a `hidden beast` number, since 46 + 539 + 81 = 666.

It is not a de Polignac number, because 4653981 - 2² = 4653977 is a prime.

It is a super-2 number, since 2×4653981² = 43319078296722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4653989) 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 11 ways as a sum of consecutive naturals, for example, 11035 + ... + 11448.

It is an arithmetic number, because the mean of its divisors is an integer number (584584).

Almost surely, 2^4653981 is an apocalyptic number.

It is an amenable number.

4653981 is a deficient number, since it is larger than the sum of its proper divisors (2361027).

4653981 is a wasteful number, since it uses less digits than its factorization.

4653981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22512 (or 22509 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 4653981 is about 2157.3087400741. The cubic root of 4653981 is about 166.9583722603.

The spelling of 4653981 in words is "four million, six hundred fifty-three thousand, nine hundred eighty-one".