1077661 has 8 divisors (see below), whose sum is σ = 1221920. Its totient is φ = 942192.

The previous prime is 1077641. The next prime is 1077673. The reversal of 1077661 is 1667701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1077661 - 2⁷ = 1077533 is a prime.

It is a super-2 number, since 2×1077661² = 2322706461842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1935 + ... + 2428.

It is an arithmetic number, because the mean of its divisors is an integer number (152740).

2^1077661 is an apocalyptic number.

It is an amenable number.

1077661 is a deficient number, since it is larger than the sum of its proper divisors (144259).

1077661 is a wasteful number, since it uses less digits than its factorization.

1077661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 1077661 is about 1038.1045226758. The cubic root of 1077661 is about 102.5244359745.

The spelling of 1077661 in words is "one million, seventy-seven thousand, six hundred sixty-one".