1879381 has 8 divisors (see below), whose sum is σ = 2156544. Its totient is φ = 1604400.

The previous prime is 1879379. The next prime is 1879387. The reversal of 1879381 is 1839781.

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

It is not a de Polignac number, because 1879381 - 2¹ = 1879379 is a prime.

It is a super-2 number, since 2×1879381² = 7064145886322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1879381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1879387) 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, 2331 + ... + 3031.

It is an arithmetic number, because the mean of its divisors is an integer number (269568).

2^1879381 is an apocalyptic number.

It is an amenable number.

1879381 is a deficient number, since it is larger than the sum of its proper divisors (277163).

1879381 is an equidigital number, since it uses as much as digits as its factorization.

1879381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091.

The product of its digits is 12096, while the sum is 37.

The square root of 1879381 is about 1370.9051754224. The cubic root of 1879381 is about 123.4065687921.

The spelling of 1879381 in words is "one million, eight hundred seventy-nine thousand, three hundred eighty-one".