4234009397 has 4 divisors (see below), whose sum is σ = 4234142220. Its totient is φ = 4233876576.

The previous prime is 4234009393. The next prime is 4234009399. The reversal of 4234009397 is 7939004324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4031488036 + 202521361 = 63494^2 + 14231^2 .

It is a cyclic number.

It is not a de Polignac number, because 4234009397 - 2² = 4234009393 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 (4234009391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13283 + ... + 92975.

It is an arithmetic number, because the mean of its divisors is an integer number (1058535555).

It is a Poulet number, since it divides 2^4234009396-1.

Almost surely, 2^4234009397 is an apocalyptic number.

4234009397 is the 53129-th pentagonal number.

It is an amenable number.

4234009397 is a deficient number, since it is larger than the sum of its proper divisors (132823).

4234009397 is an equidigital number, since it uses as much as digits as its factorization.

4234009397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132822.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 4234009397 is about 65069.2661476983. The cubic root of 4234009397 is about 1617.7718436868.

The spelling of 4234009397 in words is "four billion, two hundred thirty-four million, nine thousand, three hundred ninety-seven".