890072063897 has 2 divisors, whose sum is σ = 890072063898. Its totient is φ = 890072063896.

The previous prime is 890072063887. The next prime is 890072064017. The reversal of 890072063897 is 798360270098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 671619586576 + 218452477321 = 819524^2 + 467389^2 .

It is a cyclic number.

It is not a de Polignac number, because 890072063897 - 2³⁰ = 888998322073 is a prime.

It is not a weakly prime, because it can be changed into another prime (890072063887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445036031948 + 445036031949.

It is an arithmetic number, because the mean of its divisors is an integer number (445036031949).

Almost surely, 2^890072063897 is an apocalyptic number.

It is an amenable number.

890072063897 is a deficient number, since it is larger than the sum of its proper divisors (1).

890072063897 is an equidigital number, since it uses as much as digits as its factorization.

890072063897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 890072063897 in words is "eight hundred ninety billion, seventy-two million, sixty-three thousand, eight hundred ninety-seven".