3928455 has 12 divisors (see below), whose sum is σ = 6809400. Its totient is φ = 2095152.

The previous prime is 3928453. The next prime is 3928487. The reversal of 3928455 is 5548293.

It is not a de Polignac number, because 3928455 - 2¹ = 3928453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43605 + ... + 43694.

It is an arithmetic number, because the mean of its divisors is an integer number (567450).

Almost surely, 2^3928455 is an apocalyptic number.

3928455 is a deficient number, since it is larger than the sum of its proper divisors (2880945).

3928455 is a wasteful number, since it uses less digits than its factorization.

3928455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87310 (or 87307 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 3928455 is about 1982.0330471513. The cubic root of 3928455 is about 157.7879840687.

The spelling of 3928455 in words is "three million, nine hundred twenty-eight thousand, four hundred fifty-five".