827156049 has 16 divisors (see below), whose sum is σ = 1108046400. Its totient is φ = 548859456.

The previous prime is 827155909. The next prime is 827156087. The reversal of 827156049 is 940651728.

It is not a de Polignac number, because 827156049 - 2⁸ = 827155793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 827156049.

It is not an unprimeable number, because it can be changed into a prime (827156549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1118922 + ... + 1119660.

It is an arithmetic number, because the mean of its divisors is an integer number (69252900).

Almost surely, 2^827156049 is an apocalyptic number.

It is an amenable number.

827156049 is a deficient number, since it is larger than the sum of its proper divisors (280890351).

827156049 is a wasteful number, since it uses less digits than its factorization.

827156049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 827156049 is about 28760.3207388235. The cubic root of 827156049 is about 938.7050408402.

The spelling of 827156049 in words is "eight hundred twenty-seven million, one hundred fifty-six thousand, forty-nine".