3928263 has 4 divisors (see below), whose sum is σ = 5237688. Its totient is φ = 2618840.

The previous prime is 3928261. The next prime is 3928273. The reversal of 3928263 is 3628293.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3928263 - 2¹ = 3928261 is a prime.

It is a d-powerful number, because it can be written as 3¹⁰ + 9 + 2 + 8⁷ + 2¹⁷ + 6⁶ + 3¹³ .

It is a D-number.

3928263 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928261) 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, 654708 + ... + 654713.

It is an arithmetic number, because the mean of its divisors is an integer number (1309422).

Almost surely, 2^3928263 is an apocalyptic number.

3928263 is a deficient number, since it is larger than the sum of its proper divisors (1309425).

3928263 is a wasteful number, since it uses less digits than its factorization.

3928263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309424.

The product of its digits is 15552, while the sum is 33.

The square root of 3928263 is about 1981.9846114438. The cubic root of 3928263 is about 157.7854134409.

The spelling of 3928263 in words is "three million, nine hundred twenty-eight thousand, two hundred sixty-three".