653801982 has 8 divisors (see below), whose sum is σ = 1307603976. Its totient is φ = 217933992.

The previous prime is 653801959. The next prime is 653801983. The reversal of 653801982 is 289108356.

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

653801982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653801983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54483493 + ... + 54483504.

It is an arithmetic number, because the mean of its divisors is an integer number (163450497).

Almost surely, 2^653801982 is an apocalyptic number.

653801982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

653801982 is a wasteful number, since it uses less digits than its factorization.

653801982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108967002.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 653801982 is about 25569.5518537185. The cubic root of 653801982 is about 867.9247591700.

The spelling of 653801982 in words is "six hundred fifty-three million, eight hundred one thousand, nine hundred eighty-two".