974191 has 4 divisors (see below), whose sum is σ = 987984. Its totient is φ = 960400.

The previous prime is 974189. The next prime is 974213. The reversal of 974191 is 191479.

It is a semiprime because it is the product of two primes.

It is a 4-Lehmer number, since φ(974191) divides (974191-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 974191 - 2¹ = 974189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6790 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (246996).

2⁹⁷⁴¹⁹¹ is an apocalyptic number.

974191 is a deficient number, since it is larger than the sum of its proper divisors (13793).

974191 is a wasteful number, since it uses less digits than its factorization.

974191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13792.

The product of its digits is 2268, while the sum is 31.

The square root of 974191 is about 987.0111448206. The cubic root of 974191 is about 99.1321908576.

The spelling of 974191 in words is "nine hundred seventy-four thousand, one hundred ninety-one".