939770666 has 16 divisors (see below), whose sum is σ = 1511848800. Its totient is φ = 436754448.

The previous prime is 939770653. The next prime is 939770749. The reversal of 939770666 is 666077939.

It is a Harshad number since it is a multiple of its sum of digits (53).

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, 231296 + ... + 235323.

It is an arithmetic number, because the mean of its divisors is an integer number (94490550).

Almost surely, 2^939770666 is an apocalyptic number.

939770666 is a deficient number, since it is larger than the sum of its proper divisors (572078134).

939770666 is a wasteful number, since it uses less digits than its factorization.

939770666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466693.

The product of its (nonzero) digits is 2571912, while the sum is 53.

The square root of 939770666 is about 30655.6791802106. The cubic root of 939770666 is about 979.5064382642.

The spelling of 939770666 in words is "nine hundred thirty-nine million, seven hundred seventy thousand, six hundred sixty-six".