9877541 has 2 divisors, whose sum is σ = 9877542. Its totient is φ = 9877540.

The previous prime is 9877537. The next prime is 9877559. The reversal of 9877541 is 1457789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9740641 + 136900 = 3121^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 9877541 - 2² = 9877537 is a prime.

It is an Ulam number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9877501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4938770 + 4938771.

It is an arithmetic number, because the mean of its divisors is an integer number (4938771).

Almost surely, 2^9877541 is an apocalyptic number.

It is an amenable number.

9877541 is a deficient number, since it is larger than the sum of its proper divisors (1).

9877541 is an equidigital number, since it uses as much as digits as its factorization.

9877541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 41.

The square root of 9877541 is about 3142.8555487009. The cubic root of 9877541 is about 214.5604215040.

The spelling of 9877541 in words is "nine million, eight hundred seventy-seven thousand, five hundred forty-one".