653391396 has 72 divisors (see below), whose sum is σ = 1998622080. Its totient is φ = 175700736.

The previous prime is 653391359. The next prime is 653391397. The reversal of 653391396 is 693193356.

It is not an unprimeable number, because it can be changed into a prime (653391397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71976 + ... + 80543.

It is an arithmetic number, because the mean of its divisors is an integer number (27758640).

Almost surely, 2^653391396 is an apocalyptic number.

It is an amenable number.

653391396 is an abundant number, since it is smaller than the sum of its proper divisors (1345230684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653391396 is a wasteful number, since it uses less digits than its factorization.

653391396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152553 (or 152548 counting only the distinct ones).

The product of its digits is 393660, while the sum is 45.

The square root of 653391396 is about 25561.5217856840. The cubic root of 653391396 is about 867.7430362690.

The spelling of 653391396 in words is "six hundred fifty-three million, three hundred ninety-one thousand, three hundred ninety-six".