1077779 has 4 divisors (see below), whose sum is σ = 1085784. Its totient is φ = 1069776.

The previous prime is 1077763. The next prime is 1077793. The reversal of 1077779 is 9777701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9777701 = 197 ⋅49633.

It is a cyclic number.

It is not a de Polignac number, because 1077779 - 2⁴ = 1077763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1077719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3797 + ... + 4070.

It is an arithmetic number, because the mean of its divisors is an integer number (271446).

2^1077779 is an apocalyptic number.

1077779 is a deficient number, since it is larger than the sum of its proper divisors (8005).

1077779 is an equidigital number, since it uses as much as digits as its factorization.

1077779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8004.

The product of its (nonzero) digits is 21609, while the sum is 38.

The square root of 1077779 is about 1038.1613554742. The cubic root of 1077779 is about 102.5281778568.

The spelling of 1077779 in words is "one million, seventy-seven thousand, seven hundred seventy-nine".