70069697 has 4 divisors (see below), whose sum is σ = 71778756. Its totient is φ = 68360640.

The previous prime is 70069667. The next prime is 70069709. The reversal of 70069697 is 79696007.

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 12931216 + 57138481 = 3596^2 + 7559^2 .

It is a cyclic number.

It is not a de Polignac number, because 70069697 - 2¹⁰ = 70068673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70069607) 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, 854468 + ... + 854549.

It is an arithmetic number, because the mean of its divisors is an integer number (17944689).

Almost surely, 2^70069697 is an apocalyptic number.

It is an amenable number.

70069697 is a deficient number, since it is larger than the sum of its proper divisors (1709059).

70069697 is a wasteful number, since it uses less digits than its factorization.

70069697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709058.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 70069697 is about 8370.7644214851. The cubic root of 70069697 is about 412.2652661435.

The spelling of 70069697 in words is "seventy million, sixty-nine thousand, six hundred ninety-seven".