4273991 has 8 divisors (see below), whose sum is σ = 4445280. Its totient is φ = 4104352.

The previous prime is 4273967. The next prime is 4274003. The reversal of 4273991 is 1993724.

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 4273991 - 2²² = 79687 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 (4273961) 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, 8246 + ... + 8748.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 2^4273991 is an apocalyptic number.

4273991 is a deficient number, since it is larger than the sum of its proper divisors (171289).

4273991 is a wasteful number, since it uses less digits than its factorization.

4273991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825.

The product of its digits is 13608, while the sum is 35.

The square root of 4273991 is about 2067.3632965688. The cubic root of 4273991 is about 162.2848086488.

The spelling of 4273991 in words is "four million, two hundred seventy-three thousand, nine hundred ninety-one".