1979136 has 54 divisors (see below), whose sum is σ = 5712980. Its totient is φ = 658944.

The previous prime is 1979129. The next prime is 1979141. The reversal of 1979136 is 6319791.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1979136.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1875 + ... + 2733.

2^1979136 is an apocalyptic number.

1979136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1979136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856490).

1979136 is an abundant number, since it is smaller than the sum of its proper divisors (3733844).

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

1979136 is an equidigital number, since it uses as much as digits as its factorization.

1979136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 864 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 1979136 is about 1406.8176854163. The cubic root of 1979136 is about 125.5524560745.

The spelling of 1979136 in words is "one million, nine hundred seventy-nine thousand, one hundred thirty-six".