820842914 has 8 divisors (see below), whose sum is σ = 1231448400. Its totient is φ = 410360116.

The previous prime is 820842899. The next prime is 820842931. The reversal of 820842914 is 419248028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×820842914² = 1347566178928022792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11564 + ... + 42135.

It is an arithmetic number, because the mean of its divisors is an integer number (153931050).

Almost surely, 2^820842914 is an apocalyptic number.

820842914 is a deficient number, since it is larger than the sum of its proper divisors (410605486).

820842914 is a wasteful number, since it uses less digits than its factorization.

820842914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61344.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 820842914 is about 28650.3562630554. The cubic root of 820842914 is about 936.3107676111.

The spelling of 820842914 in words is "eight hundred twenty million, eight hundred forty-two thousand, nine hundred fourteen".