70043707 has 4 divisors (see below), whose sum is σ = 70060536. Its totient is φ = 70026880.

The previous prime is 70043681. The next prime is 70043759. The reversal of 70043707 is 70734007.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70734007 = 73 ⋅968959.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70043707 is a prime.

It is a super-2 number, since 2×70043707² = 9812241780603698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70043777) 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, 2907 + ... + 12187.

It is an arithmetic number, because the mean of its divisors is an integer number (17515134).

Almost surely, 2^70043707 is an apocalyptic number.

70043707 is a deficient number, since it is larger than the sum of its proper divisors (16829).

70043707 is an equidigital number, since it uses as much as digits as its factorization.

70043707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16828.

The product of its (nonzero) digits is 4116, while the sum is 28.

The square root of 70043707 is about 8369.2118505866. The cubic root of 70043707 is about 412.2142878569.

The spelling of 70043707 in words is "seventy million, forty-three thousand, seven hundred seven".