822070087 has 4 divisors (see below), whose sum is σ = 841188040. Its totient is φ = 802952136.

The previous prime is 822070063. The next prime is 822070103. The reversal of 822070087 is 780070228.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-822070087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822070387) 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 3 ways as a sum of consecutive naturals, for example, 9558912 + ... + 9558997.

It is an arithmetic number, because the mean of its divisors is an integer number (210297010).

Almost surely, 2^822070087 is an apocalyptic number.

822070087 is a deficient number, since it is larger than the sum of its proper divisors (19117953).

822070087 is a wasteful number, since it uses less digits than its factorization.

822070087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19117952.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 822070087 is about 28671.7646300328. The cubic root of 822070087 is about 936.7771350287. Note that the first 3 decimals are identical.

The spelling of 822070087 in words is "eight hundred twenty-two million, seventy thousand, eighty-seven".