854648739 has 36 divisors (see below), whose sum is σ = 1489249944. Its totient is φ = 488363904.

The previous prime is 854648723. The next prime is 854648771. The reversal of 854648739 is 937846458.

It is not a de Polignac number, because 854648739 - 2⁴ = 854648723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (854648339) 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 in 35 ways as a sum of consecutive naturals, for example, 23982 + ... + 47795.

It is an arithmetic number, because the mean of its divisors is an integer number (41368054).

Almost surely, 2^854648739 is an apocalyptic number.

854648739 is a deficient number, since it is larger than the sum of its proper divisors (634601205).

854648739 is an equidigital number, since it uses as much as digits as its factorization.

854648739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71806 (or 71787 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 854648739 is about 29234.3759810262. The cubic root of 854648739 is about 948.9920015700.

The spelling of 854648739 in words is "eight hundred fifty-four million, six hundred forty-eight thousand, seven hundred thirty-nine".