38086666 has 16 divisors (see below), whose sum is σ = 59750784. Its totient is φ = 18173584.

The previous prime is 38086661. The next prime is 38086703. The reversal of 38086666 is 66668083.

38086666 is a modest number, since divided by 6666 gives 3808 as remainder.

It is not an unprimeable number, because it can be changed into a prime (38086661) 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, 30531 + ... + 31753.

It is an arithmetic number, because the mean of its divisors is an integer number (3734424).

Almost surely, 2^38086666 is an apocalyptic number.

38086666 is a deficient number, since it is larger than the sum of its proper divisors (21664118).

38086666 is a wasteful number, since it uses less digits than its factorization.

38086666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 38086666 is about 6171.4395403342. The cubic root of 38086666 is about 336.4529334290.

The spelling of 38086666 in words is "thirty-eight million, eighty-six thousand, six hundred sixty-six".