1979606 has 4 divisors (see below), whose sum is σ = 2969412. Its totient is φ = 989802.

The previous prime is 1979581. The next prime is 1979609. The reversal of 1979606 is 6069791.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1979606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494900 + ... + 494903.

It is an arithmetic number, because the mean of its divisors is an integer number (742353).

2^1979606 is an apocalyptic number.

1979606 is a deficient number, since it is larger than the sum of its proper divisors (989806).

1979606 is an equidigital number, since it uses as much as digits as its factorization.

1979606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989805.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1979606 is about 1406.9847191779. The cubic root of 1979606 is about 125.5623939100.

The spelling of 1979606 in words is "one million, nine hundred seventy-nine thousand, six hundred six".