974890205 has 4 divisors (see below), whose sum is σ = 1169868252. Its totient is φ = 779912160.

The previous prime is 974890199. The next prime is 974890207. The reversal of 974890205 is 502098479.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 112763161 + 862127044 = 10619^2 + 29362^2 .

It is not a de Polignac number, because 974890205 - 2⁶ = 974890141 is a prime.

It is a super-4 number, since 4×974890205⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974890207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97489016 + ... + 97489025.

It is an arithmetic number, because the mean of its divisors is an integer number (292467063).

Almost surely, 2^974890205 is an apocalyptic number.

It is an amenable number.

974890205 is a deficient number, since it is larger than the sum of its proper divisors (194978047).

974890205 is a wasteful number, since it uses less digits than its factorization.

974890205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194978046.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 974890205 is about 31223.2318154287. The cubic root of 974890205 is about 991.5590186408.

The spelling of 974890205 in words is "nine hundred seventy-four million, eight hundred ninety thousand, two hundred five".