70217000 has 96 divisors (see below), whose sum is σ = 191266920. Its totient is φ = 24057600.

The previous prime is 70216981. The next prime is 70217003. The reversal of 70217000 is 71207.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32787076 + 37429924 = 5726^2 + 6118^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70217000.

It is not an unprimeable number, because it can be changed into a prime (70217003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48284 + ... + 49716.

Almost surely, 2^70217000 is an apocalyptic number.

70217000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70217000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95633460).

70217000 is an abundant number, since it is smaller than the sum of its proper divisors (121049920).

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

70217000 is a wasteful number, since it uses less digits than its factorization.

70217000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 17.

The square root of 70217000 is about 8379.5584609214. The cubic root of 70217000 is about 412.5539568231.

Adding to 70217000 its reverse (71207), we get a palindrome (70288207).

The spelling of 70217000 in words is "seventy million, two hundred seventeen thousand".