4544691397 has 4 divisors (see below), whose sum is σ = 4547676960. Its totient is φ = 4541705836.

The previous prime is 4544691391. The next prime is 4544691401. The reversal of 4544691397 is 7931964454.

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 a cyclic number.

It is not a de Polignac number, because 4544691397 - 2⁷ = 4544691269 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 (4544691391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1490497 + ... + 1493542.

It is an arithmetic number, because the mean of its divisors is an integer number (1136919240).

Almost surely, 2^4544691397 is an apocalyptic number.

It is an amenable number.

4544691397 is a deficient number, since it is larger than the sum of its proper divisors (2985563).

4544691397 is a wasteful number, since it uses less digits than its factorization.

4544691397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985562.

The product of its digits is 3265920, while the sum is 52.

The square root of 4544691397 is about 67414.3263483364. The cubic root of 4544691397 is about 1656.4111022274.

The spelling of 4544691397 in words is "four billion, five hundred forty-four million, six hundred ninety-one thousand, three hundred ninety-seven".