4030691 has 12 divisors (see below), whose sum is σ = 4800312. Its totient is φ = 3372768.

The previous prime is 4030687. The next prime is 4030693. The reversal of 4030691 is 1960304.

4030691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4030691 - 2² = 4030687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030693) 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 11 ways as a sum of consecutive naturals, for example, 1151 + ... + 3063.

It is an arithmetic number, because the mean of its divisors is an integer number (400026).

Almost surely, 2^4030691 is an apocalyptic number.

4030691 is a deficient number, since it is larger than the sum of its proper divisors (769621).

4030691 is a wasteful number, since it uses less digits than its factorization.

4030691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970 (or 1963 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 4030691 is about 2007.6580884204. The cubic root of 4030691 is about 159.1450622919.

Adding to 4030691 its reverse (1960304), we get a palindrome (5990995).

The spelling of 4030691 in words is "four million, thirty thousand, six hundred ninety-one".