1974166797 has 8 divisors (see below), whose sum is σ = 2746666944. Its totient is φ = 1258888928.

The previous prime is 1974166781. The next prime is 1974166801. The reversal of 1974166797 is 7976614791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1974166797 - 2⁴ = 1974166781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974166297) 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 7 ways as a sum of consecutive naturals, for example, 14305488 + ... + 14305625.

It is an arithmetic number, because the mean of its divisors is an integer number (343333368).

Almost surely, 2^1974166797 is an apocalyptic number.

It is an amenable number.

1974166797 is a deficient number, since it is larger than the sum of its proper divisors (772500147).

1974166797 is a wasteful number, since it uses less digits than its factorization.

1974166797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28611139.

The product of its digits is 4000752, while the sum is 57.

The square root of 1974166797 is about 44431.5968315342. The cubic root of 1974166797 is about 1254.4728921909.

The spelling of 1974166797 in words is "one billion, nine hundred seventy-four million, one hundred sixty-six thousand, seven hundred ninety-seven".