69970345 has 4 divisors (see below), whose sum is σ = 83964420. Its totient is φ = 55976272.

The previous prime is 69970339. The next prime is 69970349. The reversal of 69970345 is 54307996.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53348416 + 16621929 = 7304^2 + 4077^2 .

It is a cyclic number.

It is not a de Polignac number, because 69970345 - 2³ = 69970337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69970349) 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 3 ways as a sum of consecutive naturals, for example, 6997030 + ... + 6997039.

It is an arithmetic number, because the mean of its divisors is an integer number (20991105).

Almost surely, 2^69970345 is an apocalyptic number.

It is an amenable number.

69970345 is a deficient number, since it is larger than the sum of its proper divisors (13994075).

69970345 is a wasteful number, since it uses less digits than its factorization.

69970345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13994074.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 69970345 is about 8364.8278523829. The cubic root of 69970345 is about 412.0703233245.

The spelling of 69970345 in words is "sixty-nine million, nine hundred seventy thousand, three hundred forty-five".