1380079 has 4 divisors (see below), whose sum is σ = 1382440. Its totient is φ = 1377720.

The previous prime is 1380053. The next prime is 1380083. The reversal of 1380079 is 9700831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9700831 = 7 ⋅1385833.

It is a cyclic number.

It is not a de Polignac number, because 1380079 - 2⁵ = 1380047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (345610).

2^1380079 is an apocalyptic number.

1380079 is a deficient number, since it is larger than the sum of its proper divisors (2361).

1380079 is a wasteful number, since it uses less digits than its factorization.

1380079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1380079 is about 1174.7676365988. The cubic root of 1380079 is about 111.3357525938.

The spelling of 1380079 in words is "one million, three hundred eighty thousand, seventy-nine".