974152643 has 4 divisors (see below), whose sum is σ = 974215080. Its totient is φ = 974090208.

The previous prime is 974152637. The next prime is 974152651. The reversal of 974152643 is 346251479.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 346251479 = 7 ⋅49464497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974152643 is a prime.

It is a super-3 number, since 3×974152643³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 974152643.

It is not an unprimeable number, because it can be changed into a prime (974152633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14648 + ... + 46506.

It is an arithmetic number, because the mean of its divisors is an integer number (243553770).

Almost surely, 2^974152643 is an apocalyptic number.

974152643 is a deficient number, since it is larger than the sum of its proper divisors (62437).

974152643 is a wasteful number, since it uses less digits than its factorization.

974152643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62436.

The product of its digits is 181440, while the sum is 41.

The square root of 974152643 is about 31211.4184714505. The cubic root of 974152643 is about 991.3088979059.

The spelling of 974152643 in words is "nine hundred seventy-four million, one hundred fifty-two thousand, six hundred forty-three".