2630978 has 8 divisors (see below), whose sum is σ = 4510272. Its totient is φ = 1127556.

The previous prime is 2630951. The next prime is 2630989. The reversal of 2630978 is 8790362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93950 + ... + 93977.

It is an arithmetic number, because the mean of its divisors is an integer number (563784).

2^2630978 is an apocalyptic number.

2630978 is a deficient number, since it is larger than the sum of its proper divisors (1879294).

2630978 is a wasteful number, since it uses less digits than its factorization.

2630978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187936.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2630978 is about 1622.0289763133. The cubic root of 2630978 is about 138.0508459279.

The spelling of 2630978 in words is "two million, six hundred thirty thousand, nine hundred seventy-eight".