4290091 has 8 divisors (see below), whose sum is σ = 4638704. Its totient is φ = 3944160.

The previous prime is 4290089. The next prime is 4290107. The reversal of 4290091 is 1900924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4290091 - 2¹ = 4290089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4290071) 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 7 ways as a sum of consecutive naturals, for example, 3805 + ... + 4801.

It is an arithmetic number, because the mean of its divisors is an integer number (579838).

Almost surely, 2^4290091 is an apocalyptic number.

4290091 is a deficient number, since it is larger than the sum of its proper divisors (348613).

4290091 is a wasteful number, since it uses less digits than its factorization.

4290091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 4290091 is about 2071.2534852113. The cubic root of 4290091 is about 162.4883273667.

The spelling of 4290091 in words is "four million, two hundred ninety thousand, ninety-one".