66876970 has 16 divisors (see below), whose sum is σ = 120515040. Its totient is φ = 26720464.

The previous prime is 66876967. The next prime is 66876983. The reversal of 66876970 is 7967866.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6909 + ... + 13471.

It is an arithmetic number, because the mean of its divisors is an integer number (7532190).

Almost surely, 2^66876970 is an apocalyptic number.

66876970 is a deficient number, since it is larger than the sum of its proper divisors (53638070).

66876970 is a wasteful number, since it uses less digits than its factorization.

66876970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7589.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 66876970 is about 8177.8340653256. The cubic root of 66876970 is about 405.9060546060.

The spelling of 66876970 in words is "sixty-six million, eight hundred seventy-six thousand, nine hundred seventy".