3756666 has 16 divisors (see below), whose sum is σ = 7697088. Its totient is φ = 1221600.

The previous prime is 3756637. The next prime is 3756667. The reversal of 3756666 is 6666573.

It is a super-2 number, since 2×3756666² = 28225078871112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3756667) 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, 7390 + ... + 7881.

It is an arithmetic number, because the mean of its divisors is an integer number (481068).

Almost surely, 2^3756666 is an apocalyptic number.

3756666 is an abundant number, since it is smaller than the sum of its proper divisors (3940422).

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

3756666 is a wasteful number, since it uses less digits than its factorization.

3756666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15317.

The product of its digits is 136080, while the sum is 39.

The square root of 3756666 is about 1938.2120627011. The cubic root of 3756666 is about 155.4536277464.

The spelling of 3756666 in words is "three million, seven hundred fifty-six thousand, six hundred sixty-six".