653432943 has 8 divisors (see below), whose sum is σ = 871449856. Its totient is φ = 435519000.

The previous prime is 653432917. The next prime is 653433007. The reversal of 653432943 is 349234356.

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

It is not a de Polignac number, because 653432943 - 2⁹ = 653432431 is a prime.

It is a super-2 number, since 2×653432943² = 853949221995282498, 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 (653432443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9463 + ... + 37368.

It is an arithmetic number, because the mean of its divisors is an integer number (108931232).

Almost surely, 2^653432943 is an apocalyptic number.

653432943 is a deficient number, since it is larger than the sum of its proper divisors (218016913).

653432943 is a wasteful number, since it uses less digits than its factorization.

653432943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51485.

The product of its digits is 233280, while the sum is 39.

The square root of 653432943 is about 25562.3344591217. The cubic root of 653432943 is about 867.7614281834.

It can be divided in two parts, 65343 and 2943, that added together give a palindrome (68286).

The spelling of 653432943 in words is "six hundred fifty-three million, four hundred thirty-two thousand, nine hundred forty-three".