1077979 has 4 divisors (see below), whose sum is σ = 1231984. Its totient is φ = 923976.

The previous prime is 1077977. The next prime is 1077997. The reversal of 1077979 is 9797701.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9797701 = 23 ⋅425987.

It is a cyclic number.

It is not a de Polignac number, because 1077979 - 2¹ = 1077977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1077971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76992 + ... + 77005.

It is an arithmetic number, because the mean of its divisors is an integer number (307996).

2^1077979 is an apocalyptic number.

1077979 is a deficient number, since it is larger than the sum of its proper divisors (154005).

1077979 is an equidigital number, since it uses as much as digits as its factorization.

1077979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154004.

The product of its (nonzero) digits is 27783, while the sum is 40.

The square root of 1077979 is about 1038.2576751462. The cubic root of 1077979 is about 102.5345194065.

The spelling of 1077979 in words is "one million, seventy-seven thousand, nine hundred seventy-nine".