1053978 has 8 divisors (see below), whose sum is σ = 2107968. Its totient is φ = 351324.

The previous prime is 1053971. The next prime is 1053989. The reversal of 1053978 is 8793501.

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

1053978 is an admirable number.

It is a super-2 number, since 2×1053978² = 2221739248968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1053971) by changing a digit.

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, 87826 + ... + 87837.

It is an arithmetic number, because the mean of its divisors is an integer number (263496).

2^1053978 is an apocalyptic number.

1053978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1053978 is a wasteful number, since it uses less digits than its factorization.

1053978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175668.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1053978 is about 1026.6343068493. The cubic root of 1053978 is about 101.7678302660.

The spelling of 1053978 in words is "one million, fifty-three thousand, nine hundred seventy-eight".