4653989 has 2 divisors, whose sum is σ = 4653990. Its totient is φ = 4653988.

The previous prime is 4653977. The next prime is 4654009. The reversal of 4653989 is 9893564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3960100 + 693889 = 1990^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 4653989 - 2¹² = 4649893 is a prime.

It is a super-2 number, since 2×4653989² = 43319227224242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4653919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2326994 + 2326995.

It is an arithmetic number, because the mean of its divisors is an integer number (2326995).

Almost surely, 2^4653989 is an apocalyptic number.

It is an amenable number.

4653989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4653989 is an equidigital number, since it uses as much as digits as its factorization.

4653989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 4653989 is about 2157.3105942353. The cubic root of 4653989 is about 166.9584679251.

The spelling of 4653989 in words is "four million, six hundred fifty-three thousand, nine hundred eighty-nine".