4087949 has 2 divisors, whose sum is σ = 4087950. Its totient is φ = 4087948.

The previous prime is 4087931. The next prime is 4087957. The reversal of 4087949 is 9497804.

4087949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4072324 + 15625 = 2018^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 4087949 - 2¹² = 4083853 is a prime.

It is a super-2 number, since 2×4087949² = 33422654053202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4087969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043974 + 2043975.

It is an arithmetic number, because the mean of its divisors is an integer number (2043975).

Almost surely, 2^4087949 is an apocalyptic number.

It is an amenable number.

4087949 is a deficient number, since it is larger than the sum of its proper divisors (1).

4087949 is an equidigital number, since it uses as much as digits as its factorization.

4087949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 4087949 is about 2021.8677009142. The cubic root of 4087949 is about 159.8951005115.

The spelling of 4087949 in words is "four million, eighty-seven thousand, nine hundred forty-nine".