431983649 has 2 divisors, whose sum is σ = 431983650. Its totient is φ = 431983648.

The previous prime is 431983619. The next prime is 431983679. The reversal of 431983649 is 946389134.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (431983619) and next prime (431983679).

It can be written as a sum of positive squares in only one way, i.e., 386515600 + 45468049 = 19660^2 + 6743^2 .

It is a cyclic number.

It is not a de Polignac number, because 431983649 - 2⁸ = 431983393 is a prime.

It is not a weakly prime, because it can be changed into another prime (431983619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215991824 + 215991825.

It is an arithmetic number, because the mean of its divisors is an integer number (215991825).

Almost surely, 2^431983649 is an apocalyptic number.

It is an amenable number.

431983649 is a deficient number, since it is larger than the sum of its proper divisors (1).

431983649 is an equidigital number, since it uses as much as digits as its factorization.

431983649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 47.

The square root of 431983649 is about 20784.2163431773. The cubic root of 431983649 is about 755.9430923309.

The spelling of 431983649 in words is "four hundred thirty-one million, nine hundred eighty-three thousand, six hundred forty-nine".