3928487 has 2 divisors, whose sum is σ = 3928488. Its totient is φ = 3928486.

The previous prime is 3928453. The next prime is 3928493. The reversal of 3928487 is 7848293.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3928487 - 2¹⁰ = 3927463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3928417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1964243 + 1964244.

It is an arithmetic number, because the mean of its divisors is an integer number (1964244).

Almost surely, 2^3928487 is an apocalyptic number.

3928487 is a deficient number, since it is larger than the sum of its proper divisors (1).

3928487 is an equidigital number, since it uses as much as digits as its factorization.

3928487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 3928487 is about 1982.0411196542. The cubic root of 3928487 is about 157.7884124985.

The spelling of 3928487 in words is "three million, nine hundred twenty-eight thousand, four hundred eighty-seven".