1027978 has 16 divisors (see below), whose sum is σ = 1782144. Its totient is φ = 435600.

The previous prime is 1027969. The next prime is 1027987. The reversal of 1027978 is 8797201.

It is an interprime number because it is at equal distance from previous prime (1027969) and next prime (1027987).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051 + ... + 1777.

It is an arithmetic number, because the mean of its divisors is an integer number (111384).

2^1027978 is an apocalyptic number.

1027978 is a deficient number, since it is larger than the sum of its proper divisors (754166).

1027978 is a wasteful number, since it uses less digits than its factorization.

1027978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 1027978 is about 1013.8924992325. The cubic root of 1027978 is about 100.9240352885.

The spelling of 1027978 in words is "one million, twenty-seven thousand, nine hundred seventy-eight".