4961389 has 2 divisors, whose sum is σ = 4961390. Its totient is φ = 4961388.

The previous prime is 4961377. The next prime is 4961443. The reversal of 4961389 is 9831694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4272489 + 688900 = 2067^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 4961389 - 2¹¹ = 4959341 is a prime.

4961389 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4961329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2480694 + 2480695.

It is an arithmetic number, because the mean of its divisors is an integer number (2480695).

Almost surely, 2^4961389 is an apocalyptic number.

It is an amenable number.

4961389 is a deficient number, since it is larger than the sum of its proper divisors (1).

4961389 is an equidigital number, since it uses as much as digits as its factorization.

4961389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 4961389 is about 2227.4175630088. The cubic root of 4961389 is about 170.5562975742.

The spelling of 4961389 in words is "four million, nine hundred sixty-one thousand, three hundred eighty-nine".