70709369 has 4 divisors (see below), whose sum is σ = 70734720. Its totient is φ = 70684020.

The previous prime is 70709363. The next prime is 70709381. The reversal of 70709369 is 96390707.

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 70709369 - 2²⁰ = 69660793 is a prime.

It is a super-2 number, since 2×70709369² = 9999629728756322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70709363) 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, 7889 + ... + 14270.

It is an arithmetic number, because the mean of its divisors is an integer number (17683680).

Almost surely, 2^70709369 is an apocalyptic number.

It is an amenable number.

70709369 is a deficient number, since it is larger than the sum of its proper divisors (25351).

70709369 is a wasteful number, since it uses less digits than its factorization.

70709369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25350.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 70709369 is about 8408.8863115159. The cubic root of 70709369 is about 413.5160022602.

The spelling of 70709369 in words is "seventy million, seven hundred nine thousand, three hundred sixty-nine".