847379819 has 16 divisors (see below), whose sum is σ = 1003771104. Its totient is φ = 711073440.

The previous prime is 847379791. The next prime is 847379849. The reversal of 847379819 is 918973748.

It is not a de Polignac number, because 847379819 - 2¹² = 847375723 is a prime.

It is a super-2 number, since 2×847379819² = 1436105115296945522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (847379849) 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 15 ways as a sum of consecutive naturals, for example, 7184 + ... + 41789.

It is an arithmetic number, because the mean of its divisors is an integer number (62735694).

Almost surely, 2^847379819 is an apocalyptic number.

847379819 is a deficient number, since it is larger than the sum of its proper divisors (156391285).

847379819 is a wasteful number, since it uses less digits than its factorization.

847379819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49019 (or 48997 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 56.

The square root of 847379819 is about 29109.7890579784. The cubic root of 847379819 is about 946.2938964261.

The spelling of 847379819 in words is "eight hundred forty-seven million, three hundred seventy-nine thousand, eight hundred nineteen".