70379709 has 4 divisors (see below), whose sum is σ = 93839616. Its totient is φ = 46919804.

The previous prime is 70379693. The next prime is 70379719. The reversal of 70379709 is 90797307.

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 70379709 - 2⁴ = 70379693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70379719) 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, 11729949 + ... + 11729954.

It is an arithmetic number, because the mean of its divisors is an integer number (23459904).

Almost surely, 2^70379709 is an apocalyptic number.

It is an amenable number.

70379709 is a deficient number, since it is larger than the sum of its proper divisors (23459907).

70379709 is a wasteful number, since it uses less digits than its factorization.

70379709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23459906.

The product of its (nonzero) digits is 83349, while the sum is 42.

The square root of 70379709 is about 8389.2615288832. The cubic root of 70379709 is about 412.8723719240.

The spelling of 70379709 in words is "seventy million, three hundred seventy-nine thousand, seven hundred nine".