379209309 has 8 divisors (see below), whose sum is σ = 506283360. Its totient is φ = 252470736.

The previous prime is 379209283. The next prime is 379209323. The reversal of 379209309 is 903902973.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 379209309 - 2¹¹ = 379207261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379209109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81219 + ... + 85760.

It is an arithmetic number, because the mean of its divisors is an integer number (63285420).

Almost surely, 2^379209309 is an apocalyptic number.

It is an amenable number.

379209309 is a deficient number, since it is larger than the sum of its proper divisors (127074051).

379209309 is a wasteful number, since it uses less digits than its factorization.

379209309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167739.

The product of its (nonzero) digits is 91854, while the sum is 42.

The square root of 379209309 is about 19473.2973325012. The cubic root of 379209309 is about 723.8129184266.

The spelling of 379209309 in words is "three hundred seventy-nine million, two hundred nine thousand, three hundred nine".