379689666 has 16 divisors (see below), whose sum is σ = 761076000. Its totient is φ = 126280448.

The previous prime is 379689659. The next prime is 379689689. The reversal of 379689666 is 666986973.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67776 + ... + 73163.

It is an arithmetic number, because the mean of its divisors is an integer number (47567250).

Almost surely, 2^379689666 is an apocalyptic number.

379689666 is an abundant number, since it is smaller than the sum of its proper divisors (381386334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

379689666 is a wasteful number, since it uses less digits than its factorization.

379689666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141393.

The product of its digits is 17635968, while the sum is 60.

The square root of 379689666 is about 19485.6271646565. The cubic root of 379689666 is about 724.1184154063.

The spelling of 379689666 in words is "three hundred seventy-nine million, six hundred eighty-nine thousand, six hundred sixty-six".