867820630 has 32 divisors (see below), whose sum is σ = 1645920000. Its totient is φ = 328532832.

The previous prime is 867820589. The next prime is 867820651. The reversal of 867820630 is 36028768.

It is a happy number.

It is a super-2 number, since 2×867820630² = 1506225291707193800, 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 15 ways as a sum of consecutive naturals, for example, 287871 + ... + 290869.

It is an arithmetic number, because the mean of its divisors is an integer number (51435000).

Almost surely, 2^867820630 is an apocalyptic number.

867820630 is a deficient number, since it is larger than the sum of its proper divisors (778099370).

867820630 is a wasteful number, since it uses less digits than its factorization.

867820630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4548.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 867820630 is about 29458.7954607788. The cubic root of 867820630 is about 953.8424724554.

The spelling of 867820630 in words is "eight hundred sixty-seven million, eight hundred twenty thousand, six hundred thirty".