1363978 has 32 divisors (see below), whose sum is σ = 2706048. Its totient is φ = 499200.

The previous prime is 1363963. The next prime is 1363979. The reversal of 1363978 is 8793631.

It is not an unprimeable number, because it can be changed into a prime (1363979) 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 15 ways as a sum of consecutive naturals, for example, 2358 + ... + 2878.

It is an arithmetic number, because the mean of its divisors is an integer number (84564).

2^1363978 is an apocalyptic number.

1363978 is a deficient number, since it is larger than the sum of its proper divisors (1342070).

1363978 is a wasteful number, since it uses less digits than its factorization.

1363978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558.

The product of its digits is 27216, while the sum is 37.

The square root of 1363978 is about 1167.8946870330. The cubic root of 1363978 is about 110.9010833192.

It can be divided in two parts, 136 and 3978, that added together give a palindrome (4114).

The spelling of 1363978 in words is "one million, three hundred sixty-three thousand, nine hundred seventy-eight".