4743989 has 2 divisors, whose sum is σ = 4743990. Its totient is φ = 4743988.

The previous prime is 4743983. The next prime is 4744001. The reversal of 4743989 is 9893474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4656964 + 87025 = 2158^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 4743989 - 2¹² = 4739893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4743983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2371994 + 2371995.

It is an arithmetic number, because the mean of its divisors is an integer number (2371995).

Almost surely, 2^4743989 is an apocalyptic number.

It is an amenable number.

4743989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4743989 is an equidigital number, since it uses as much as digits as its factorization.

4743989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 4743989 is about 2178.0700172400. The cubic root of 4743989 is about 168.0278322180.

The spelling of 4743989 in words is "four million, seven hundred forty-three thousand, nine hundred eighty-nine".