1013778 has 24 divisors (see below), whose sum is σ = 2326428. Its totient is φ = 317952.

The previous prime is 1013773. The next prime is 1013791. The reversal of 1013778 is 8773101.

1013778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 859329 + 154449 = 927^2 + 393^2 .

It is not an unprimeable number, because it can be changed into a prime (1013773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1351 + ... + 1962.

2^1013778 is an apocalyptic number.

1013778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1013778 is an abundant number, since it is smaller than the sum of its proper divisors (1312650).

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

1013778 is a wasteful number, since it uses less digits than its factorization.

1013778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 1013778 is about 1006.8654329154. The cubic root of 1013778 is about 100.4571734063.

Adding to 1013778 its reverse (8773101), we get a palindrome (9786879).

The spelling of 1013778 in words is "one million, thirteen thousand, seven hundred seventy-eight".