484251991 has 2 divisors, whose sum is σ = 484251992. Its totient is φ = 484251990.

The previous prime is 484251983. The next prime is 484252009. The reversal of 484251991 is 199152484.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 484251991 - 2³ = 484251983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (484251931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242125995 + 242125996.

It is an arithmetic number, because the mean of its divisors is an integer number (242125996).

Almost surely, 2^484251991 is an apocalyptic number.

484251991 is a deficient number, since it is larger than the sum of its proper divisors (1).

484251991 is an equidigital number, since it uses as much as digits as its factorization.

484251991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 43.

The square root of 484251991 is about 22005.7263229369. The cubic root of 484251991 is about 785.2786769373.

The spelling of 484251991 in words is "four hundred eighty-four million, two hundred fifty-one thousand, nine hundred ninety-one".