849728878 has 8 divisors (see below), whose sum is σ = 1275283800. Its totient is φ = 424634280.

The previous prime is 849728863. The next prime is 849728903. The reversal of 849728878 is 878827948.

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

It is a super-2 number, since 2×849728878² = 1444078332214277768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 110428 + ... + 117871.

It is an arithmetic number, because the mean of its divisors is an integer number (159410475).

Almost surely, 2^849728878 is an apocalyptic number.

849728878 is a deficient number, since it is larger than the sum of its proper divisors (425554922).

849728878 is a wasteful number, since it uses less digits than its factorization.

849728878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230162.

The product of its digits is 14450688, while the sum is 61.

The square root of 849728878 is about 29150.1093994517. The cubic root of 849728878 is about 947.1675106878.

The spelling of 849728878 in words is "eight hundred forty-nine million, seven hundred twenty-eight thousand, eight hundred seventy-eight".