872626218 has 16 divisors (see below), whose sum is σ = 1847914560. Its totient is φ = 273765056.

The previous prime is 872626217. The next prime is 872626277. The reversal of 872626218 is 812626278.

It is a happy number.

It is a super-2 number, since 2×872626218² = 1522953032681967048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 872626218.

It is not an unprimeable number, because it can be changed into a prime (872626217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4277478 + ... + 4277681.

It is an arithmetic number, because the mean of its divisors is an integer number (115494660).

Almost surely, 2^872626218 is an apocalyptic number.

872626218 is an abundant number, since it is smaller than the sum of its proper divisors (975288342).

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

872626218 is a wasteful number, since it uses less digits than its factorization.

872626218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555181.

The product of its digits is 129024, while the sum is 42.

The square root of 872626218 is about 29540.2474261811. The cubic root of 872626218 is about 955.5998782207.

The spelling of 872626218 in words is "eight hundred seventy-two million, six hundred twenty-six thousand, two hundred eighteen".