70009647 has 4 divisors (see below), whose sum is σ = 93346200. Its totient is φ = 46673096.

The previous prime is 70009619. The next prime is 70009669. The reversal of 70009647 is 74690007.

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

It is a cyclic number.

It is not a de Polignac number, because 70009647 - 2¹¹ = 70007599 is a prime.

It is a super-3 number, since 3×70009647³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70009607) 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, 11668272 + ... + 11668277.

It is an arithmetic number, because the mean of its divisors is an integer number (23336550).

Almost surely, 2^70009647 is an apocalyptic number.

70009647 is a deficient number, since it is larger than the sum of its proper divisors (23336553).

70009647 is a wasteful number, since it uses less digits than its factorization.

70009647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23336552.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 70009647 is about 8367.1767639987. The cubic root of 70009647 is about 412.1474615109.

The spelling of 70009647 in words is "seventy million, nine thousand, six hundred forty-seven".