829156890 has 32 divisors (see below), whose sum is σ = 1991785536. Its totient is φ = 220907520.

The previous prime is 829156883. The next prime is 829156949. The reversal of 829156890 is 98651928.

It is a happy number.

It is a super-2 number, since 2×829156890² = 1375002296468944200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 22605 + ... + 46575.

It is an arithmetic number, because the mean of its divisors is an integer number (62243298).

Almost surely, 2^829156890 is an apocalyptic number.

829156890 is an abundant number, since it is smaller than the sum of its proper divisors (1162628646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

829156890 is a wasteful number, since it uses less digits than its factorization.

829156890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25134.

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 829156890 is about 28795.0844763477. The cubic root of 829156890 is about 939.4613218142.

The spelling of 829156890 in words is "eight hundred twenty-nine million, one hundred fifty-six thousand, eight hundred ninety".