66876073 has 8 divisors (see below), whose sum is σ = 73022976. Its totient is φ = 60740400.

The previous prime is 66876071. The next prime is 66876109. The reversal of 66876073 is 37067866.

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 66876073 - 2¹ = 66876071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66876071) 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, 14115 + ... + 18247.

It is an arithmetic number, because the mean of its divisors is an integer number (9127872).

Almost surely, 2^66876073 is an apocalyptic number.

It is an amenable number.

66876073 is a deficient number, since it is larger than the sum of its proper divisors (6146903).

66876073 is a wasteful number, since it uses less digits than its factorization.

66876073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 66876073 is about 8177.7792217692. The cubic root of 66876073 is about 405.9042398339.

The spelling of 66876073 in words is "sixty-six million, eight hundred seventy-six thousand, seventy-three".