3729649 has 8 divisors (see below), whose sum is σ = 4650048. Its totient is φ = 2906160.

The previous prime is 3729629. The next prime is 3729659. The reversal of 3729649 is 9469273.

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

It is a cyclic number.

It is not a de Polignac number, because 3729649 - 2⁷ = 3729521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3729629) 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, 24142 + ... + 24295.

It is an arithmetic number, because the mean of its divisors is an integer number (581256).

Almost surely, 2^3729649 is an apocalyptic number.

It is an amenable number.

3729649 is a deficient number, since it is larger than the sum of its proper divisors (920399).

3729649 is a wasteful number, since it uses less digits than its factorization.

3729649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48455.

The product of its digits is 81648, while the sum is 40.

The square root of 3729649 is about 1931.2299189895. The cubic root of 3729649 is about 155.0800696261.

The spelling of 3729649 in words is "three million, seven hundred twenty-nine thousand, six hundred forty-nine".