897421753653 has 16 divisors (see below), whose sum is σ = 1199274968640. Its totient is φ = 596926002816.

The previous prime is 897421753643. The next prime is 897421753681. The reversal of 897421753653 is 356357124798.

It is a happy number.

It is not a de Polignac number, because 897421753653 - 2⁵ = 897421753621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897421753603) 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 15 ways as a sum of consecutive naturals, for example, 3008001 + ... + 3292857.

It is an arithmetic number, because the mean of its divisors is an integer number (74954685540).

Almost surely, 2^897421753653 is an apocalyptic number.

It is an amenable number.

897421753653 is a deficient number, since it is larger than the sum of its proper divisors (301853214987).

897421753653 is a wasteful number, since it uses less digits than its factorization.

897421753653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287236.

The product of its digits is 38102400, while the sum is 60.

The spelling of 897421753653 in words is "eight hundred ninety-seven billion, four hundred twenty-one million, seven hundred fifty-three thousand, six hundred fifty-three".