2650978 has 16 divisors (see below), whose sum is σ = 4445280. Its totient is φ = 1175200.

The previous prime is 2650969. The next prime is 2650981. The reversal of 2650978 is 8790562.

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, 568 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (277830).

2^2650978 is an apocalyptic number.

2650978 is a deficient number, since it is larger than the sum of its proper divisors (1794302).

2650978 is a wasteful number, since it uses less digits than its factorization.

2650978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2650978 is about 1628.1824222120. The cubic root of 2650978 is about 138.3997719599.

The spelling of 2650978 in words is "two million, six hundred fifty thousand, nine hundred seventy-eight".