9877001 has 2 divisors, whose sum is σ = 9877002. Its totient is φ = 9877000.

The previous prime is 9876961. The next prime is 9877033. The reversal of 9877001 is 1007789.

It is an a-pointer prime, because the next prime (9877033) can be obtained adding 9877001 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6175225 + 3701776 = 2485^2 + 1924^2 .

It is an emirp because it is prime and its reverse (1007789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9877001 - 2¹⁰ = 9875977 is a prime.

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, 4938500 + 4938501.

It is an arithmetic number, because the mean of its divisors is an integer number (4938501).

Almost surely, 2^9877001 is an apocalyptic number.

It is an amenable number.

9877001 is a deficient number, since it is larger than the sum of its proper divisors (1).

9877001 is an equidigital number, since it uses as much as digits as its factorization.

9877001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 9877001 is about 3142.7696383922. The cubic root of 9877001 is about 214.5565114641.

The spelling of 9877001 in words is "nine million, eight hundred seventy-seven thousand, one".