1055978 has 16 divisors (see below), whose sum is σ = 1975104. Its totient is φ = 411360.

The previous prime is 1055969. The next prime is 1055981. The reversal of 1055978 is 8795501.

It is a super-2 number, since 2×1055978² = 2230179072968, which contains 22 as substring.

It is a congruent number.

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, 3275 + ... + 3582.

It is an arithmetic number, because the mean of its divisors is an integer number (123444).

2^1055978 is an apocalyptic number.

1055978 is a deficient number, since it is larger than the sum of its proper divisors (919126).

1055978 is a wasteful number, since it uses less digits than its factorization.

1055978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 1055978 is about 1027.6079018770. The cubic root of 1055978 is about 101.8321602156.

The spelling of 1055978 in words is "one million, fifty-five thousand, nine hundred seventy-eight".