379917217 has 4 divisors (see below), whose sum is σ = 399912880. Its totient is φ = 359921556.

The previous prime is 379917203. The next prime is 379917227. The reversal of 379917217 is 712719973.

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 379917217 - 2¹¹ = 379915169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379917227) 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 3 ways as a sum of consecutive naturals, for example, 9997803 + ... + 9997840.

It is an arithmetic number, because the mean of its divisors is an integer number (99978220).

Almost surely, 2^379917217 is an apocalyptic number.

It is an amenable number.

379917217 is a deficient number, since it is larger than the sum of its proper divisors (19995663).

379917217 is a wasteful number, since it uses less digits than its factorization.

379917217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19995662.

The product of its digits is 166698, while the sum is 46.

The square root of 379917217 is about 19491.4652348150. The cubic root of 379917217 is about 724.2630431366.

The spelling of 379917217 in words is "three hundred seventy-nine million, nine hundred seventeen thousand, two hundred seventeen".