431492849 has 2 divisors, whose sum is σ = 431492850. Its totient is φ = 431492848.

The previous prime is 431492837. The next prime is 431492851. The reversal of 431492849 is 948294134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429815824 + 1677025 = 20732^2 + 1295^2 .

It is a cyclic number.

It is not a de Polignac number, because 431492849 - 2¹⁶ = 431427313 is a prime.

Together with 431492851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431492879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215746424 + 215746425.

It is an arithmetic number, because the mean of its divisors is an integer number (215746425).

Almost surely, 2^431492849 is an apocalyptic number.

It is an amenable number.

431492849 is a deficient number, since it is larger than the sum of its proper divisors (1).

431492849 is an equidigital number, since it uses as much as digits as its factorization.

431492849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 431492849 is about 20772.4059511651. The cubic root of 431492849 is about 755.6566945547.

The spelling of 431492849 in words is "four hundred thirty-one million, four hundred ninety-two thousand, eight hundred forty-nine".