1379648 has 14 divisors (see below), whose sum is σ = 2737866. Its totient is φ = 689792.

The previous prime is 1379641. The next prime is 1379657. The reversal of 1379648 is 8469731.

It can be written as a sum of positive squares in only one way, i.e., 906304 + 473344 = 952^2 + 688^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379641) 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 as a sum of consecutive naturals, namely, 10715 + ... + 10842.

2^1379648 is an apocalyptic number.

It is an amenable number.

1379648 is a deficient number, since it is larger than the sum of its proper divisors (1358218).

1379648 is an equidigital number, since it uses as much as digits as its factorization.

1379648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21569 (or 21559 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 1379648 is about 1174.5841817426. The cubic root of 1379648 is about 111.3241612995.

The spelling of 1379648 in words is "one million, three hundred seventy-nine thousand, six hundred forty-eight".