653738423 has 8 divisors (see below), whose sum is σ = 708512448. Its totient is φ = 599605344.

The previous prime is 653738389. The next prime is 653738429. The reversal of 653738423 is 324837356.

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

It is not a de Polignac number, because 653738423 - 2¹⁴ = 653722039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653738429) 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, 158111 + ... + 162192.

It is an arithmetic number, because the mean of its divisors is an integer number (88564056).

Almost surely, 2^653738423 is an apocalyptic number.

653738423 is a deficient number, since it is larger than the sum of its proper divisors (54774025).

653738423 is a wasteful number, since it uses less digits than its factorization.

653738423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320473.

The product of its digits is 362880, while the sum is 41.

The square root of 653738423 is about 25568.3089585526. The cubic root of 653738423 is about 867.8966333159.

The spelling of 653738423 in words is "six hundred fifty-three million, seven hundred thirty-eight thousand, four hundred twenty-three".