3729691 has 8 divisors (see below), whose sum is σ = 4361984. Its totient is φ = 3122280.

The previous prime is 3729673. The next prime is 3729697. The reversal of 3729691 is 1969273.

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

It is not a de Polignac number, because 3729691 - 2⁵ = 3729659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3729691.

It is not an unprimeable number, because it can be changed into a prime (3729697) 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, 5895 + ... + 6496.

It is an arithmetic number, because the mean of its divisors is an integer number (545248).

Almost surely, 2^3729691 is an apocalyptic number.

3729691 is a deficient number, since it is larger than the sum of its proper divisors (632293).

3729691 is a wasteful number, since it uses less digits than its factorization.

3729691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12441.

The product of its digits is 20412, while the sum is 37.

The square root of 3729691 is about 1931.2407928583. The cubic root of 3729691 is about 155.0806517487.

The spelling of 3729691 in words is "three million, seven hundred twenty-nine thousand, six hundred ninety-one".