215380379 has 8 divisors (see below), whose sum is σ = 217827120. Its totient is φ = 212940000.

The previous prime is 215380369. The next prime is 215380381. The reversal of 215380379 is 973083512.

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-215380379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215380369) 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, 105137 + ... + 107165.

It is an arithmetic number, because the mean of its divisors is an integer number (27228390).

Almost surely, 2^215380379 is an apocalyptic number.

215380379 is a deficient number, since it is larger than the sum of its proper divisors (2446741).

215380379 is a wasteful number, since it uses less digits than its factorization.

215380379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 215380379 is about 14675.8433829201. The cubic root of 215380379 is about 599.4257273788.

The spelling of 215380379 in words is "two hundred fifteen million, three hundred eighty thousand, three hundred seventy-nine".