891342103 has 2 divisors, whose sum is σ = 891342104. Its totient is φ = 891342102.

The previous prime is 891342083. The next prime is 891342149. The reversal of 891342103 is 301243198.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-891342103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (891342203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445671051 + 445671052.

It is an arithmetic number, because the mean of its divisors is an integer number (445671052).

Almost surely, 2^891342103 is an apocalyptic number.

891342103 is a deficient number, since it is larger than the sum of its proper divisors (1).

891342103 is an equidigital number, since it uses as much as digits as its factorization.

891342103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 891342103 is about 29855.3530041097. The cubic root of 891342103 is about 962.3834377988.

The spelling of 891342103 in words is "eight hundred ninety-one million, three hundred forty-two thousand, one hundred three".