461984839 has 2 divisors, whose sum is σ = 461984840. Its totient is φ = 461984838.

The previous prime is 461984833. The next prime is 461984933. The reversal of 461984839 is 938489164.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461984839 - 2¹¹ = 461982791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461984833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230992419 + 230992420.

It is an arithmetic number, because the mean of its divisors is an integer number (230992420).

Almost surely, 2^461984839 is an apocalyptic number.

461984839 is a deficient number, since it is larger than the sum of its proper divisors (1).

461984839 is an equidigital number, since it uses as much as digits as its factorization.

461984839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 52.

The square root of 461984839 is about 21493.8325805334. The cubic root of 461984839 is about 773.0529488936.

The spelling of 461984839 in words is "four hundred sixty-one million, nine hundred eighty-four thousand, eight hundred thirty-nine".