70001812 has 6 divisors (see below), whose sum is σ = 122503178. Its totient is φ = 35000904.

The previous prime is 70001803. The next prime is 70001849. The reversal of 70001812 is 21810007.

It can be written as a sum of positive squares in only one way, i.e., 41422096 + 28579716 = 6436^2 + 5346^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70001812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8750223 + ... + 8750230.

Almost surely, 2^70001812 is an apocalyptic number.

It is an amenable number.

70001812 is a deficient number, since it is larger than the sum of its proper divisors (52501366).

70001812 is a wasteful number, since it uses less digits than its factorization.

70001812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17500457 (or 17500455 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 70001812 is about 8366.7085523520. The cubic root of 70001812 is about 412.1320860306.

Adding to 70001812 its reverse (21810007), we get a palindrome (91811819).

The spelling of 70001812 in words is "seventy million, one thousand, eight hundred twelve".