97197645 has 16 divisors (see below), whose sum is σ = 158826240. Its totient is φ = 50735424.

The previous prime is 97197629. The next prime is 97197649. The reversal of 97197645 is 54679179.

It is a happy number.

It is not a de Polignac number, because 97197645 - 2⁴ = 97197629 is a prime.

It is a super-3 number, since 3×97197645³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97197594 and 97197603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97197649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68230 + ... + 69639.

It is an arithmetic number, because the mean of its divisors is an integer number (9926640).

Almost surely, 2^97197645 is an apocalyptic number.

It is an amenable number.

97197645 is a deficient number, since it is larger than the sum of its proper divisors (61628595).

97197645 is a wasteful number, since it uses less digits than its factorization.

97197645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137924.

The product of its digits is 476280, while the sum is 48.

The square root of 97197645 is about 9858.8866004230. The cubic root of 97197645 is about 459.7819461166.

The spelling of 97197645 in words is "ninety-seven million, one hundred ninety-seven thousand, six hundred forty-five".