1363649 has 8 divisors (see below), whose sum is σ = 1640640. Its totient is φ = 1107216.

The previous prime is 1363631. The next prime is 1363673. The reversal of 1363649 is 9463631.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1363649 - 2⁸ = 1363393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1363679) 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, 4994 + ... + 5259.

It is an arithmetic number, because the mean of its divisors is an integer number (205080).

2^1363649 is an apocalyptic number.

1363649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1363649 is a deficient number, since it is larger than the sum of its proper divisors (276991).

1363649 is a wasteful number, since it uses less digits than its factorization.

1363649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10279.

The product of its digits is 11664, while the sum is 32.

The square root of 1363649 is about 1167.7538267974. The cubic root of 1363649 is about 110.8921659245.

The spelling of 1363649 in words is "one million, three hundred sixty-three thousand, six hundred forty-nine".