663077 has 4 divisors (see below), whose sum is σ = 681036. Its totient is φ = 645120.

The previous prime is 663071. The next prime is 663097. The reversal of 663077 is 770366.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 261121 + 401956 = 511^2 + 634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663077 is a prime.

It is a super-2 number, since 2×663077² = 879342215858, 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 (663071) 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, 8924 + ... + 8997.

It is an arithmetic number, because the mean of its divisors is an integer number (170259).

2⁶⁶³⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

663077 is a deficient number, since it is larger than the sum of its proper divisors (17959).

663077 is a wasteful number, since it uses less digits than its factorization.

663077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17958.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 663077 is about 814.2954009449. The cubic root of 663077 is about 87.2009710775.

The spelling of 663077 in words is "six hundred sixty-three thousand, seventy-seven".