1879605 has 96 divisors (see below), whose sum is σ = 4402944. Its totient is φ = 746496.

The previous prime is 1879601. The next prime is 1879607. The reversal of 1879605 is 5069781.

It is not a de Polignac number, because 1879605 - 2² = 1879601 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1879605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1879601) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 110557 + ... + 110573.

It is an arithmetic number, because the mean of its divisors is an integer number (45864).

2^1879605 is an apocalyptic number.

1879605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1879605 is an abundant number, since it is smaller than the sum of its proper divisors (2523339).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1879605 is a wasteful number, since it uses less digits than its factorization.

1879605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1879605 is about 1370.9868708343. The cubic root of 1879605 is about 123.4114714654.

Adding to 1879605 its sum of digits (36), we get a square (1879641 = 1371²).

The spelling of 1879605 in words is "one million, eight hundred seventy-nine thousand, six hundred five".