653994798 has 8 divisors (see below), whose sum is σ = 1307989608. Its totient is φ = 217998264.

The previous prime is 653994797. The next prime is 653994821. The reversal of 653994798 is 897499356.

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

653994798 is an admirable number.

It is a super-2 number, since 2×653994798² = 855418391622121608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653994793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54499561 + ... + 54499572.

It is an arithmetic number, because the mean of its divisors is an integer number (163498701).

Almost surely, 2^653994798 is an apocalyptic number.

653994798 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.

653994798 is a wasteful number, since it uses less digits than its factorization.

653994798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108999138.

The product of its digits is 14696640, while the sum is 60.

The square root of 653994798 is about 25573.3219977382. The cubic root of 653994798 is about 868.0100721222.

The spelling of 653994798 in words is "six hundred fifty-three million, nine hundred ninety-four thousand, seven hundred ninety-eight".