4003427397 has 4 divisors (see below), whose sum is σ = 5337903200. Its totient is φ = 2668951596.

The previous prime is 4003427369. The next prime is 4003427401. The reversal of 4003427397 is 7937243004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4003427397 - 2⁶ = 4003427333 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 (4003427297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667237897 + ... + 667237902.

It is an arithmetic number, because the mean of its divisors is an integer number (1334475800).

Almost surely, 2^4003427397 is an apocalyptic number.

It is an amenable number.

4003427397 is a deficient number, since it is larger than the sum of its proper divisors (1334475803).

4003427397 is a wasteful number, since it uses less digits than its factorization.

4003427397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334475802.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 4003427397 is about 63272.6433539804. The cubic root of 4003427397 is about 1587.8543103351.

The spelling of 4003427397 in words is "four billion, three million, four hundred twenty-seven thousand, three hundred ninety-seven".