887073321961 has 2 divisors, whose sum is σ = 887073321962. Its totient is φ = 887073321960.

The previous prime is 887073321889. The next prime is 887073321973. The reversal of 887073321961 is 169123370788.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 819749160000 + 67324161961 = 905400^2 + 259469^2 .

It is a cyclic number.

It is not a de Polignac number, because 887073321961 - 2⁷ = 887073321833 is a prime.

It is not a weakly prime, because it can be changed into another prime (887073321161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443536660980 + 443536660981.

It is an arithmetic number, because the mean of its divisors is an integer number (443536660981).

Almost surely, 2^887073321961 is an apocalyptic number.

It is an amenable number.

887073321961 is a deficient number, since it is larger than the sum of its proper divisors (1).

887073321961 is an equidigital number, since it uses as much as digits as its factorization.

887073321961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 887073321961 in words is "eight hundred eighty-seven billion, seventy-three million, three hundred twenty-one thousand, nine hundred sixty-one".