379749209 has 8 divisors (see below), whose sum is σ = 434712000. Its totient is φ = 324964656.

The previous prime is 379749203. The next prime is 379749221. The reversal of 379749209 is 902947973.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-379749209 is a prime.

It is a super-2 number, since 2×379749209² = 288418923472251362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379749203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39959 + ... + 48540.

It is an arithmetic number, because the mean of its divisors is an integer number (54339000).

Almost surely, 2^379749209 is an apocalyptic number.

It is an amenable number.

379749209 is a deficient number, since it is larger than the sum of its proper divisors (54962791).

379749209 is an equidigital number, since it uses as much as digits as its factorization.

379749209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89119.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 379749209 is about 19487.1549744954. The cubic root of 379749209 is about 724.1562655535.

The spelling of 379749209 in words is "three hundred seventy-nine million, seven hundred forty-nine thousand, two hundred nine".