97864541 has 4 divisors (see below), whose sum is σ = 98521500. Its totient is φ = 97207584.

The previous prime is 97864493. The next prime is 97864567. The reversal of 97864541 is 14546879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14546879 = 23 ⋅632473.

It can be written as a sum of positive squares in 2 ways, for example, as 10048900 + 87815641 = 3170^2 + 9371^2 .

It is a cyclic number.

It is not a de Polignac number, because 97864541 - 2¹⁰ = 97863517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97864492 and 97864501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97860541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328256 + ... + 328553.

It is an arithmetic number, because the mean of its divisors is an integer number (24630375).

Almost surely, 2^97864541 is an apocalyptic number.

It is an amenable number.

97864541 is a deficient number, since it is larger than the sum of its proper divisors (656959).

97864541 is a wasteful number, since it uses less digits than its factorization.

97864541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656958.

The product of its digits is 241920, while the sum is 44.

The square root of 97864541 is about 9892.6508580865. The cubic root of 97864541 is about 460.8311077577.

The spelling of 97864541 in words is "ninety-seven million, eight hundred sixty-four thousand, five hundred forty-one".