1077691 has 2 divisors, whose sum is σ = 1077692. Its totient is φ = 1077690.

The previous prime is 1077677. The next prime is 1077697. The reversal of 1077691 is 1967701.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1077691 - 2⁷ = 1077563 is a prime.

It is a super-2 number, since 2×1077691² = 2322835782962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1077697) 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 as a sum of consecutive naturals, namely, 538845 + 538846.

It is an arithmetic number, because the mean of its divisors is an integer number (538846).

2^1077691 is an apocalyptic number.

1077691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077691 is an equidigital number, since it uses as much as digits as its factorization.

1077691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 1077691 is about 1038.1189719873. The cubic root of 1077691 is about 102.5253873264.

The spelling of 1077691 in words is "one million, seventy-seven thousand, six hundred ninety-one".