822057897 has 8 divisors (see below), whose sum is σ = 1125701056. Its totient is φ = 533226672.

The previous prime is 822057893. The next prime is 822057949. The reversal of 822057897 is 798750228.

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

It is not a de Polignac number, because 822057897 - 2² = 822057893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (822057893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3702853 + ... + 3703074.

It is an arithmetic number, because the mean of its divisors is an integer number (140712632).

Almost surely, 2^822057897 is an apocalyptic number.

It is an amenable number.

822057897 is a deficient number, since it is larger than the sum of its proper divisors (303643159).

822057897 is a wasteful number, since it uses less digits than its factorization.

822057897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7405967.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 822057897 is about 28671.5520507698. The cubic root of 822057897 is about 936.7725046978.

The spelling of 822057897 in words is "eight hundred twenty-two million, fifty-seven thousand, eight hundred ninety-seven".