70000830 has 24 divisors (see below), whose sum is σ = 182002392. Its totient is φ = 18666864.

The previous prime is 70000829. The next prime is 70000831. The reversal of 70000830 is 3800007.

It is an interprime number because it is at equal distance from previous prime (70000829) and next prime (70000831).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70000831) 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 11 ways as a sum of consecutive naturals, for example, 388804 + ... + 388983.

It is an arithmetic number, because the mean of its divisors is an integer number (7583433).

Almost surely, 2^70000830 is an apocalyptic number.

70000830 is an abundant number, since it is smaller than the sum of its proper divisors (112001562).

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

70000830 is a wasteful number, since it uses less digits than its factorization.

70000830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777800 (or 777797 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 70000830 is about 8366.6498671810. The cubic root of 70000830 is about 412.1301588634.

Adding to 70000830 its reverse (3800007), we get a palindrome (73800837).

The spelling of 70000830 in words is "seventy million, eight hundred thirty", and thus it is an aban number.