4063691 has 4 divisors (see below), whose sum is σ = 4119432. Its totient is φ = 4007952.

The previous prime is 4063643. The next prime is 4063693. The reversal of 4063691 is 1963604.

4063691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4063691 - 2⁶ = 4063627 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4063693) 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 in 3 ways as a sum of consecutive naturals, for example, 27761 + ... + 27906.

It is an arithmetic number, because the mean of its divisors is an integer number (1029858).

Almost surely, 2^4063691 is an apocalyptic number.

4063691 is a deficient number, since it is larger than the sum of its proper divisors (55741).

4063691 is an equidigital number, since it uses as much as digits as its factorization.

4063691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55740.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 4063691 is about 2015.8598661613. The cubic root of 4063691 is about 159.5781988969.

The spelling of 4063691 in words is "four million, sixty-three thousand, six hundred ninety-one".