3729857 has 4 divisors (see below), whose sum is σ = 3748800. Its totient is φ = 3710916.

The previous prime is 3729853. The next prime is 3729877. The reversal of 3729857 is 7589273.

3729857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3729857 - 2² = 3729853 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 7 + 2²¹ + 9² + 8⁵ + 5⁵ + 7⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3729853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9173 + ... + 9570.

It is an arithmetic number, because the mean of its divisors is an integer number (937200).

Almost surely, 2^3729857 is an apocalyptic number.

It is an amenable number.

3729857 is a deficient number, since it is larger than the sum of its proper divisors (18943).

3729857 is a wasteful number, since it uses less digits than its factorization.

3729857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18942.

The product of its digits is 105840, while the sum is 41.

The square root of 3729857 is about 1931.2837699313. The cubic root of 3729857 is about 155.0829524761.

The spelling of 3729857 in words is "three million, seven hundred twenty-nine thousand, eight hundred fifty-seven".