653773980 has 48 divisors (see below), whose sum is σ = 1853752320. Its totient is φ = 172131648.

The previous prime is 653773957. The next prime is 653773997. The reversal of 653773980 is 89377356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64224 + ... + 73703.

It is an arithmetic number, because the mean of its divisors is an integer number (38619840).

Almost surely, 2^653773980 is an apocalyptic number.

653773980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

653773980 is an abundant number, since it is smaller than the sum of its proper divisors (1199978340).

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

653773980 is a wasteful number, since it uses less digits than its factorization.

653773980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138018 (or 138016 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 48.

The square root of 653773980 is about 25569.0042825293. The cubic root of 653773980 is about 867.9123680706.

The spelling of 653773980 in words is "six hundred fifty-three million, seven hundred seventy-three thousand, nine hundred eighty".