70069745 has 8 divisors (see below), whose sum is σ = 84354216. Its totient is φ = 55875456.

The previous prime is 70069717. The next prime is 70069817. The reversal of 70069745 is 54796007.

It can be written as a sum of positive squares in 4 ways, for example, as 247009 + 69822736 = 497^2 + 8356^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70069745 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70069699 and 70069708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20822 + ... + 23951.

It is an arithmetic number, because the mean of its divisors is an integer number (10544277).

Almost surely, 2^70069745 is an apocalyptic number.

It is an amenable number.

70069745 is a deficient number, since it is larger than the sum of its proper divisors (14284471).

70069745 is a wasteful number, since it uses less digits than its factorization.

70069745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45091.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 70069745 is about 8370.7672886062. The cubic root of 70069745 is about 412.2653602818.

The spelling of 70069745 in words is "seventy million, sixty-nine thousand, seven hundred forty-five".