70080709 has 4 divisors (see below), whose sum is σ = 70510816. Its totient is φ = 69650604.

The previous prime is 70080707. The next prime is 70080781. The reversal of 70080709 is 90708007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70080709 - 2¹ = 70080707 is a prime.

It is a super-2 number, since 2×70080709² = 9822611547885362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70080707) 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, 214809 + ... + 215134.

It is an arithmetic number, because the mean of its divisors is an integer number (17627704).

Almost surely, 2^70080709 is an apocalyptic number.

It is an amenable number.

70080709 is a deficient number, since it is larger than the sum of its proper divisors (430107).

70080709 is a wasteful number, since it uses less digits than its factorization.

70080709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430106.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 70080709 is about 8371.4221611385. The cubic root of 70080709 is about 412.2868619141.

The spelling of 70080709 in words is "seventy million, eighty thousand, seven hundred nine".