4292391 has 4 divisors (see below), whose sum is σ = 5723192. Its totient is φ = 2861592.

The previous prime is 4292383. The next prime is 4292411. The reversal of 4292391 is 1932924.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4292391 - 2³ = 4292383 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4292341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715396 + ... + 715401.

It is an arithmetic number, because the mean of its divisors is an integer number (1430798).

Almost surely, 2^4292391 is an apocalyptic number.

4292391 is a deficient number, since it is larger than the sum of its proper divisors (1430801).

4292391 is a wasteful number, since it uses less digits than its factorization.

4292391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430800.

The product of its digits is 3888, while the sum is 30.

The square root of 4292391 is about 2071.8086301587. The cubic root of 4292391 is about 162.5173598811.

The spelling of 4292391 in words is "four million, two hundred ninety-two thousand, three hundred ninety-one".