653998752 has 96 divisors (see below), whose sum is σ = 2080935360. Its totient is φ = 198178560.

The previous prime is 653998711. The next prime is 653998757. The reversal of 653998752 is 257899356.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (653998757) 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, 24903 + ... + 43910.

It is an arithmetic number, because the mean of its divisors is an integer number (21676410).

Almost surely, 2^653998752 is an apocalyptic number.

It is an amenable number.

653998752 is an abundant number, since it is smaller than the sum of its proper divisors (1426936608).

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

653998752 is a wasteful number, since it uses less digits than its factorization.

653998752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68843 (or 68829 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The square root of 653998752 is about 25573.3993047463. The cubic root of 653998752 is about 868.0118214251.

The spelling of 653998752 in words is "six hundred fifty-three million, nine hundred ninety-eight thousand, seven hundred fifty-two".