890799124847 has 2 divisors, whose sum is σ = 890799124848. Its totient is φ = 890799124846.

The previous prime is 890799124793. The next prime is 890799124883. The reversal of 890799124847 is 748421997098.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890799124847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890799120847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445399562423 + 445399562424.

It is an arithmetic number, because the mean of its divisors is an integer number (445399562424).

Almost surely, 2^890799124847 is an apocalyptic number.

890799124847 is a deficient number, since it is larger than the sum of its proper divisors (1).

890799124847 is an equidigital number, since it uses as much as digits as its factorization.

890799124847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73156608, while the sum is 68.

The spelling of 890799124847 in words is "eight hundred ninety billion, seven hundred ninety-nine million, one hundred twenty-four thousand, eight hundred forty-seven".