97211653 has 16 divisors (see below), whose sum is σ = 121415040. Its totient is φ = 75614400.

The previous prime is 97211549. The next prime is 97211663. The reversal of 97211653 is 35611279.

It is a cyclic number.

It is not a de Polignac number, because 97211653 - 2¹³ = 97203461 is a prime.

It is a Duffinian number.

Its product of digits (11340) is a multiple of the sum of its prime divisors (2268).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97211663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81723 + ... + 82903.

It is an arithmetic number, because the mean of its divisors is an integer number (7588440).

Almost surely, 2^97211653 is an apocalyptic number.

It is an amenable number.

97211653 is a deficient number, since it is larger than the sum of its proper divisors (24203387).

97211653 is a wasteful number, since it uses less digits than its factorization.

97211653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268.

The product of its digits is 11340, while the sum is 34.

The square root of 97211653 is about 9859.5969998778. The cubic root of 97211653 is about 459.8040327838.

The spelling of 97211653 in words is "ninety-seven million, two hundred eleven thousand, six hundred fifty-three".