3729666 has 8 divisors (see below), whose sum is σ = 7459344. Its totient is φ = 1243220.

The previous prime is 3729659. The next prime is 3729667. The reversal of 3729666 is 6669273.

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

3729666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3729667) 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, 310800 + ... + 310811.

It is an arithmetic number, because the mean of its divisors is an integer number (932418).

Almost surely, 2^3729666 is an apocalyptic number.

3729666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3729666 is a wasteful number, since it uses less digits than its factorization.

3729666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621616.

The product of its digits is 81648, while the sum is 39.

The square root of 3729666 is about 1931.2343203247. The cubic root of 3729666 is about 155.0803052477.

The spelling of 3729666 in words is "three million, seven hundred twenty-nine thousand, six hundred sixty-six".