653428081 has 8 divisors (see below), whose sum is σ = 662538240. Its totient is φ = 644380128.

The previous prime is 653428079. The next prime is 653428117. The reversal of 653428081 is 180824356.

It is a happy number.

653428081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 653428081 - 2¹ = 653428079 is a prime.

It is a super-2 number, since 2×653428081² = 853936514078685122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 653428081.

It is not an unprimeable number, because it can be changed into a prime (653428001) 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, 5805 + ... + 36613.

It is an arithmetic number, because the mean of its divisors is an integer number (82817280).

Almost surely, 2^653428081 is an apocalyptic number.

It is an amenable number.

653428081 is a deficient number, since it is larger than the sum of its proper divisors (9110159).

653428081 is a wasteful number, since it uses less digits than its factorization.

653428081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31103.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 653428081 is about 25562.2393580844. The cubic root of 653428081 is about 867.7592759266.

The spelling of 653428081 in words is "six hundred fifty-three million, four hundred twenty-eight thousand, eighty-one".