3904487 has 2 divisors, whose sum is σ = 3904488. Its totient is φ = 3904486.

The previous prime is 3904477. The next prime is 3904493. The reversal of 3904487 is 7844093.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3904487 - 2¹⁶ = 3838951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3904447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1952243 + 1952244.

It is an arithmetic number, because the mean of its divisors is an integer number (1952244).

Almost surely, 2^3904487 is an apocalyptic number.

3904487 is a deficient number, since it is larger than the sum of its proper divisors (1).

3904487 is an equidigital number, since it uses as much as digits as its factorization.

3904487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3904487 is about 1975.9774796288. The cubic root of 3904487 is about 157.4664344362.

The spelling of 3904487 in words is "three million, nine hundred four thousand, four hundred eighty-seven".