3928897 has 8 divisors (see below), whose sum is σ = 4530816. Its totient is φ = 3337152.

The previous prime is 3928849. The next prime is 3928913. The reversal of 3928897 is 7988293.

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

It is not a de Polignac number, because 3928897 - 2¹¹ = 3926849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3928807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693 + ... + 3274.

It is an arithmetic number, because the mean of its divisors is an integer number (566352).

Almost surely, 2^3928897 is an apocalyptic number.

It is an amenable number.

3928897 is a deficient number, since it is larger than the sum of its proper divisors (601919).

3928897 is a wasteful number, since it uses less digits than its factorization.

3928897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087.

The product of its digits is 217728, while the sum is 46.

The square root of 3928897 is about 1982.1445456878. The cubic root of 3928897 is about 157.7939015497.

The spelling of 3928897 in words is "three million, nine hundred twenty-eight thousand, eight hundred ninety-seven".