844949431 has 2 divisors, whose sum is σ = 844949432. Its totient is φ = 844949430.

The previous prime is 844949407. The next prime is 844949461. The reversal of 844949431 is 134949448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 844949431 - 2¹⁵ = 844916663 is a prime.

It is a super-2 number, since 2×844949431² = 1427879081894447522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844949461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422474715 + 422474716.

It is an arithmetic number, because the mean of its divisors is an integer number (422474716).

Almost surely, 2^844949431 is an apocalyptic number.

844949431 is a deficient number, since it is larger than the sum of its proper divisors (1).

844949431 is an equidigital number, since it uses as much as digits as its factorization.

844949431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 46.

The square root of 844949431 is about 29068.0138812407. The cubic root of 844949431 is about 945.3883349335.

The spelling of 844949431 in words is "eight hundred forty-four million, nine hundred forty-nine thousand, four hundred thirty-one".