663790269 has 8 divisors (see below), whose sum is σ = 905636512. Its totient is φ = 432235440.

The previous prime is 663790261. The next prime is 663790273. The reversal of 663790269 is 962097366.

663790269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 663790269 - 2³ = 663790261 is a prime.

It is a super-2 number, since 2×663790269² = 881235042438184722, 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 (663790261) 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, 2572702 + ... + 2572959.

It is an arithmetic number, because the mean of its divisors is an integer number (113204564).

Almost surely, 2^663790269 is an apocalyptic number.

It is an amenable number.

663790269 is a deficient number, since it is larger than the sum of its proper divisors (241846243).

663790269 is a wasteful number, since it uses less digits than its factorization.

663790269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145707.

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 663790269 is about 25764.1275613982. The cubic root of 663790269 is about 872.3222710597.

The spelling of 663790269 in words is "six hundred sixty-three million, seven hundred ninety thousand, two hundred sixty-nine".