4098691 has 2 divisors, whose sum is σ = 4098692. Its totient is φ = 4098690.

The previous prime is 4098673. The next prime is 4098697. The reversal of 4098691 is 1968904.

4098691 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 is a cyclic number.

It is not a de Polignac number, because 4098691 - 2⁵ = 4098659 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁹ + 0 + 9³ + 8⁷ + 6⁸ + 9⁵ + 1 .

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 4098691.

It is not a weakly prime, because it can be changed into another prime (4098697) 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, 2049345 + 2049346.

It is an arithmetic number, because the mean of its divisors is an integer number (2049346).

Almost surely, 2^4098691 is an apocalyptic number.

4098691 is a deficient number, since it is larger than the sum of its proper divisors (1).

4098691 is an equidigital number, since it uses as much as digits as its factorization.

4098691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 4098691 is about 2024.5224128174. The cubic root of 4098691 is about 160.0350313920.

The spelling of 4098691 in words is "four million, ninety-eight thousand, six hundred ninety-one".