4097645 has 8 divisors (see below), whose sum is σ = 4928256. Its totient is φ = 3270736.

The previous prime is 4097633. The next prime is 4097647. The reversal of 4097645 is 5467904.

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 4097645 - 2⁸ = 4097389 is a prime.

It is a super-3 number, since 3×4097645³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4097647) 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 7 ways as a sum of consecutive naturals, for example, 3164 + ... + 4266.

It is an arithmetic number, because the mean of its divisors is an integer number (616032).

Almost surely, 2^4097645 is an apocalyptic number.

It is an amenable number.

4097645 is a deficient number, since it is larger than the sum of its proper divisors (830611).

4097645 is a wasteful number, since it uses less digits than its factorization.

4097645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 4097645 is about 2024.2640638020. The cubic root of 4097645 is about 160.0214164041.

The spelling of 4097645 in words is "four million, ninety-seven thousand, six hundred forty-five".