2079978 has 16 divisors (see below), whose sum is σ = 4228896. Its totient is φ = 681840.

The previous prime is 2079943. The next prime is 2079997. The reversal of 2079978 is 8799702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2476 + ... + 3207.

It is an arithmetic number, because the mean of its divisors is an integer number (264306).

2^2079978 is an apocalyptic number.

2079978 is an abundant number, since it is smaller than the sum of its proper divisors (2148918).

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

2079978 is a wasteful number, since it uses less digits than its factorization.

2079978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 2079978 is about 1442.2128830377. The cubic root of 2079978 is about 127.6496359272.

The spelling of 2079978 in words is "two million, seventy-nine thousand, nine hundred seventy-eight".