1077667 has 4 divisors (see below), whose sum is σ = 1085560. Its totient is φ = 1069776.

The previous prime is 1077641. The next prime is 1077673. The reversal of 1077667 is 7667701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7667701 = 73 ⋅105037.

It is a cyclic number.

It is not a de Polignac number, because 1077667 - 2⁷ = 1077539 is a prime.

It is a super-2 number, since 2×1077667² = 2322732325778, which contains 22 as substring.

It is a Duffinian number.

1077667 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1077607) 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, 3738 + ... + 4015.

It is an arithmetic number, because the mean of its divisors is an integer number (271390).

2^1077667 is an apocalyptic number.

1077667 is a deficient number, since it is larger than the sum of its proper divisors (7893).

1077667 is an equidigital number, since it uses as much as digits as its factorization.

1077667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7892.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 1077667 is about 1038.1074125542. The cubic root of 1077667 is about 102.5246262463.

Adding to 1077667 its sum of digits (34), we get a palindrome (1077701).

It can be divided in two parts, 10 and 77667, that added together give a palindrome (77677).

The spelling of 1077667 in words is "one million, seventy-seven thousand, six hundred sixty-seven".