673156653 has 16 divisors (see below), whose sum is σ = 970273920. Its totient is φ = 412668864.

The previous prime is 673156619. The next prime is 673156669. The reversal of 673156653 is 356651376.

It is a happy number.

673156653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 673156653 - 2¹⁴ = 673140269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673156553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22558 + ... + 43071.

It is an arithmetic number, because the mean of its divisors is an integer number (60642120).

Almost surely, 2^673156653 is an apocalyptic number.

It is an amenable number.

673156653 is a deficient number, since it is larger than the sum of its proper divisors (297117267).

673156653 is a wasteful number, since it uses less digits than its factorization.

673156653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65908.

The product of its digits is 340200, while the sum is 42.

The square root of 673156653 is about 25945.2626311626. The cubic root of 673156653 is about 876.4060780189.

The spelling of 673156653 in words is "six hundred seventy-three million, one hundred fifty-six thousand, six hundred fifty-three".