3100666 has 8 divisors (see below), whose sum is σ = 4764564. Its totient is φ = 1512480.

The previous prime is 3100663. The next prime is 3100697. The reversal of 3100666 is 6660013.

It can be written as a sum of positive squares in 2 ways, for example, as 1901641 + 1199025 = 1379^2 + 1095^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3100666² = 19228259287112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3100661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18825 + ... + 18988.

Almost surely, 2^3100666 is an apocalyptic number.

3100666 is a deficient number, since it is larger than the sum of its proper divisors (1663898).

3100666 is a wasteful number, since it uses less digits than its factorization.

3100666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37856.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3100666 is about 1760.8708072996. The cubic root of 3100666 is about 145.8204147105.

Adding to 3100666 its reverse (6660013), we get a palindrome (9760679).

The spelling of 3100666 in words is "three million, one hundred thousand, six hundred sixty-six".