70328345 has 4 divisors (see below), whose sum is σ = 84394020. Its totient is φ = 56262672.

The previous prime is 70328341. The next prime is 70328347. The reversal of 70328345 is 54382307.

It is a happy number.

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 51423241 + 18905104 = 7171^2 + 4348^2 .

It is a cyclic number.

It is not a de Polignac number, because 70328345 - 2² = 70328341 is a prime.

It is a super-2 number, since 2×70328345² = 9892152220878050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70328341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7032830 + ... + 7032839.

It is an arithmetic number, because the mean of its divisors is an integer number (21098505).

Almost surely, 2^70328345 is an apocalyptic number.

It is an amenable number.

70328345 is a deficient number, since it is larger than the sum of its proper divisors (14065675).

70328345 is a wasteful number, since it uses less digits than its factorization.

70328345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14065674.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 70328345 is about 8386.1996756576. The cubic root of 70328345 is about 412.7719076571.

The spelling of 70328345 in words is "seventy million, three hundred twenty-eight thousand, three hundred forty-five".