4951789 has 2 divisors, whose sum is σ = 4951790. Its totient is φ = 4951788.

The previous prime is 4951787. The next prime is 4951813. The reversal of 4951789 is 9871594.

4951789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3674889 + 1276900 = 1917^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 4951789 - 2¹ = 4951787 is a prime.

Together with 4951787, it forms a pair of twin primes.

4951789 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4951783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475894 + 2475895.

It is an arithmetic number, because the mean of its divisors is an integer number (2475895).

Almost surely, 2^4951789 is an apocalyptic number.

It is an amenable number.

4951789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4951789 is an equidigital number, since it uses as much as digits as its factorization.

4951789 is an evil number, because the sum of its binary digits is even.

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

The square root of 4951789 is about 2225.2615576601. The cubic root of 4951789 is about 170.4462210313.

The spelling of 4951789 in words is "four million, nine hundred fifty-one thousand, seven hundred eighty-nine".