653994484 has 24 divisors (see below), whose sum is σ = 1344577248. Its totient is φ = 274403040.

The previous prime is 653994479. The next prime is 653994487. The reversal of 653994484 is 484499356.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653994487) 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, 571102 + ... + 572245.

It is an arithmetic number, because the mean of its divisors is an integer number (56024052).

Almost surely, 2^653994484 is an apocalyptic number.

It is an amenable number.

653994484 is an abundant number, since it is smaller than the sum of its proper divisors (690582764).

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

653994484 is a wasteful number, since it uses less digits than its factorization.

653994484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143375 (or 1143373 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 52.

The square root of 653994484 is about 25573.3158585272. The cubic root of 653994484 is about 868.0099332041.

The spelling of 653994484 in words is "six hundred fifty-three million, nine hundred ninety-four thousand, four hundred eighty-four".