66962734 has 4 divisors (see below), whose sum is σ = 100444104. Its totient is φ = 33481366.

The previous prime is 66962719. The next prime is 66962743. The reversal of 66962734 is 43726966.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43726966 = 2 ⋅21863483.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16740682 + ... + 16740685.

It is an arithmetic number, because the mean of its divisors is an integer number (25111026).

Almost surely, 2^66962734 is an apocalyptic number.

66962734 is a deficient number, since it is larger than the sum of its proper divisors (33481370).

66962734 is a wasteful number, since it uses less digits than its factorization.

66962734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33481369.

The product of its digits is 326592, while the sum is 43.

The square root of 66962734 is about 8183.0760719915. The cubic root of 66962734 is about 406.0794937648.

The spelling of 66962734 in words is "sixty-six million, nine hundred sixty-two thousand, seven hundred thirty-four".