379211921 has 4 divisors (see below), whose sum is σ = 413685744. Its totient is φ = 344738100.

The previous prime is 379211891. The next prime is 379211953. The reversal of 379211921 is 129112973.

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 379211921 - 2¹⁸ = 378949777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379213921) 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, 17236895 + ... + 17236916.

It is an arithmetic number, because the mean of its divisors is an integer number (103421436).

Almost surely, 2^379211921 is an apocalyptic number.

It is an amenable number.

379211921 is a deficient number, since it is larger than the sum of its proper divisors (34473823).

379211921 is a wasteful number, since it uses less digits than its factorization.

379211921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34473822.

The product of its digits is 6804, while the sum is 35.

The square root of 379211921 is about 19473.3643985830. The cubic root of 379211921 is about 723.8145803013.

The spelling of 379211921 in words is "three hundred seventy-nine million, two hundred eleven thousand, nine hundred twenty-one".