4751989 has 8 divisors (see below), whose sum is σ = 5231232. Its totient is φ = 4280640.

The previous prime is 4751951. The next prime is 4752001. The reversal of 4751989 is 9891574.

4751989 = 17² + 18² + ... + 242².

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 4751989 - 2⁹ = 4751477 is a prime.

It is a super-2 number, since 2×4751989² = 45162798912242, which contains 22 as substring.

It is a Duffinian number.

4751989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4751909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669 + ... + 3154.

It is an arithmetic number, because the mean of its divisors is an integer number (653904).

Almost surely, 2^4751989 is an apocalyptic number.

It is an amenable number.

4751989 is a deficient number, since it is larger than the sum of its proper divisors (479243).

4751989 is a wasteful number, since it uses less digits than its factorization.

4751989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3947.

The product of its digits is 90720, while the sum is 43.

The square root of 4751989 is about 2179.9057319068. The cubic root of 4751989 is about 168.1222301152.

The spelling of 4751989 in words is "four million, seven hundred fifty-one thousand, nine hundred eighty-nine".