983778 has 16 divisors (see below), whose sum is σ = 1986336. Its totient is φ = 324800.

The previous prime is 983777. The next prime is 983783. The reversal of 983778 is 877389.

It is not an unprimeable number, because it can be changed into a prime (983771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (124146).

2⁹⁸³⁷⁷⁸ is an apocalyptic number.

983778 is an abundant number, since it is smaller than the sum of its proper divisors (1002558).

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

983778 is a wasteful number, since it uses less digits than its factorization.

983778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569.

The product of its digits is 84672, while the sum is 42.

The square root of 983778 is about 991.8558362988. The cubic root of 983778 is about 99.4563161018.

The spelling of 983778 in words is "nine hundred eighty-three thousand, seven hundred seventy-eight".