3885007666 has 4 divisors (see below), whose sum is σ = 5827511502. Its totient is φ = 1942503832.

The previous prime is 3885007631. The next prime is 3885007697. The reversal of 3885007666 is 6667005883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3326867041 + 558140625 = 57679^2 + 23625^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971251915 + ... + 971251918.

Almost surely, 2^3885007666 is an apocalyptic number.

3885007666 is a deficient number, since it is larger than the sum of its proper divisors (1942503836).

3885007666 is a wasteful number, since it uses less digits than its factorization.

3885007666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942503835.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 3885007666 is about 62329.8296644552. The cubic root of 3885007666 is about 1572.0413310575.

The spelling of 3885007666 in words is "three billion, eight hundred eighty-five million, seven thousand, six hundred sixty-six".