663074 has 4 divisors (see below), whose sum is σ = 994614. Its totient is φ = 331536.

The previous prime is 663071. The next prime is 663097. The reversal of 663074 is 470366.

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

It can be written as a sum of positive squares in only one way, i.e., 628849 + 34225 = 793^2 + 185^2 .

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 as a sum of consecutive naturals, namely, 165767 + ... + 165770.

2⁶⁶³⁰⁷⁴ is an apocalyptic number.

663074 is a deficient number, since it is larger than the sum of its proper divisors (331540).

663074 is a wasteful number, since it uses less digits than its factorization.

663074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331539.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 663074 is about 814.2935588595. The cubic root of 663074 is about 87.2008395677.

The spelling of 663074 in words is "six hundred sixty-three thousand, seventy-four".