2080978 has 4 divisors (see below), whose sum is σ = 3121470. Its totient is φ = 1040488.

The previous prime is 2080963. The next prime is 2080979. The reversal of 2080978 is 8790802.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1595169 + 485809 = 1263^2 + 697^2 .

It is not an unprimeable number, because it can be changed into a prime (2080979) 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 as a sum of consecutive naturals, namely, 520243 + ... + 520246.

2^2080978 is an apocalyptic number.

2080978 is a deficient number, since it is larger than the sum of its proper divisors (1040492).

2080978 is a wasteful number, since it uses less digits than its factorization.

2080978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040491.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2080978 is about 1442.5595308340. The cubic root of 2080978 is about 127.6700895385.

The spelling of 2080978 in words is "two million, eighty thousand, nine hundred seventy-eight".