974891 has 2 divisors, whose sum is σ = 974892. Its totient is φ = 974890.

The previous prime is 974887. The next prime is 974923. The reversal of 974891 is 198479.

974891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (198479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 974891 - 2² = 974887 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (974821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487445 + 487446.

It is an arithmetic number, because the mean of its divisors is an integer number (487446).

2⁹⁷⁴⁸⁹¹ is an apocalyptic number.

974891 is a deficient number, since it is larger than the sum of its proper divisors (1).

974891 is an equidigital number, since it uses as much as digits as its factorization.

974891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 974891 is about 987.3656870684. The cubic root of 974891 is about 99.1559288172.

The spelling of 974891 in words is "nine hundred seventy-four thousand, eight hundred ninety-one".