66962974 has 8 divisors (see below), whose sum is σ = 108171000. Its totient is φ = 30905976.

The previous prime is 66962971. The next prime is 66962993. The reversal of 66962974 is 47926966.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66962971) 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, 1287724 + ... + 1287775.

It is an arithmetic number, because the mean of its divisors is an integer number (13521375).

Almost surely, 2^66962974 is an apocalyptic number.

66962974 is a deficient number, since it is larger than the sum of its proper divisors (41208026).

66962974 is a wasteful number, since it uses less digits than its factorization.

66962974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575514.

The product of its digits is 979776, while the sum is 49.

The square root of 66962974 is about 8183.0907363905. The cubic root of 66962974 is about 406.0799789051.

The spelling of 66962974 in words is "sixty-six million, nine hundred sixty-two thousand, nine hundred seventy-four".