1979748 has 48 divisors (see below), whose sum is σ = 5362560. Its totient is φ = 630432.

The previous prime is 1979741. The next prime is 1979749. The reversal of 1979748 is 8479791.

1979748 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1979741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2086 + ... + 2882.

It is an arithmetic number, because the mean of its divisors is an integer number (111720).

2^1979748 is an apocalyptic number.

1979748 is a gapful number since it is divisible by the number (18) 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 1979748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2681280).

1979748 is an abundant number, since it is smaller than the sum of its proper divisors (3382812).

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

1979748 is a wasteful number, since it uses less digits than its factorization.

1979748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833 (or 825 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 1979748 is about 1407.0351807968. The cubic root of 1979748 is about 125.5653960956.

The spelling of 1979748 in words is "one million, nine hundred seventy-nine thousand, seven hundred forty-eight".