66929753 has 8 divisors (see below), whose sum is σ = 74795616. Its totient is φ = 59360800.

The previous prime is 66929743. The next prime is 66929773. The reversal of 66929753 is 35792966.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66929753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66929698 and 66929707.

It is not an unprimeable number, because it can be changed into a prime (66929743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73751 + ... + 74652.

It is an arithmetic number, because the mean of its divisors is an integer number (9349452).

Almost surely, 2^66929753 is an apocalyptic number.

It is an amenable number.

66929753 is a deficient number, since it is larger than the sum of its proper divisors (7865863).

66929753 is a wasteful number, since it uses less digits than its factorization.

66929753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148455.

The product of its digits is 612360, while the sum is 47.

The square root of 66929753 is about 8181.0606280604. The cubic root of 66929753 is about 406.0128143528.

The spelling of 66929753 in words is "sixty-six million, nine hundred twenty-nine thousand, seven hundred fifty-three".